amiro-os / os / core / src / aos_shell.c @ ba516b61
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1 | e545e620 | Thomas Schöpping | /*
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2 | AMiRo-OS is an operating system designed for the Autonomous Mini Robot (AMiRo) platform.
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3 | Copyright (C) 2016..2018 Thomas Schöpping et al.
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4 | |||
5 | This program is free software: you can redistribute it and/or modify
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6 | it under the terms of the GNU General Public License as published by
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7 | the Free Software Foundation, either version 3 of the License, or
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8 | (at your option) any later version.
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9 | |||
10 | This program is distributed in the hope that it will be useful,
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | GNU General Public License for more details.
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14 | |||
15 | You should have received a copy of the GNU General Public License
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16 | along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 | */
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18 | |||
19 | #include <aos_shell.h> |
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20 | |||
21 | ba516b61 | Thomas Schöpping | #if (AMIROOS_CFG_SHELL_ENABLE == true) |
22 | e545e620 | Thomas Schöpping | #include <aos_debug.h> |
23 | #include <aos_time.h> |
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24 | #include <aos_system.h> |
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25 | #include <chprintf.h> |
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26 | #include <string.h> |
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27 | #include <aos_thread.h> |
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28 | |||
29 | ba516b61 | Thomas Schöpping | |
30 | |||
31 | /**
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32 | * @brief Event mask to be set on OS related events.
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33 | */
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34 | #define AOS_SHELL_EVENTMASK_OS EVENT_MASK(0) |
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35 | |||
36 | /**
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37 | * @brief Event mask to be set on a input event.
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38 | */
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39 | #define AOS_SHELL_EVENTMASK_INPUT EVENT_MASK(1) |
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40 | |||
41 | /**
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42 | * @brief Implementation of the BaseAsynchronous write() method (inherited from BaseSequentialStream).
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43 | */
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44 | static size_t _channelwrite(void *instance, const uint8_t *bp, size_t n) |
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45 | { |
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46 | if (((AosShellChannel*)instance)->flags & AOS_SHELLCHANNEL_OUTPUT_ENABLED) {
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47 | return streamWrite(((AosShellChannel*)instance)->iochannel->asyncchannel, bp, n);
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48 | } else {
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49 | return 0; |
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50 | } |
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51 | } |
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52 | |||
53 | /**
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54 | * @brief Implementation of the BaseAsynchronous read() method (inherited from BaseSequentialStream).
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55 | */
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56 | static size_t _channelread(void *instance, uint8_t *bp, size_t n) |
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57 | { |
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58 | return streamRead(((AosShellChannel*)instance)->iochannel->asyncchannel, bp, n);
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59 | } |
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60 | |||
61 | /**
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62 | * @brief Implementation of the BaseAsynchronous put() method (inherited from BaseSequentialStream).
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63 | */
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64 | static msg_t _channelput(void *instance, uint8_t b) |
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65 | { |
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66 | if (((AosShellChannel*)instance)->flags & AOS_SHELLCHANNEL_OUTPUT_ENABLED) {
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67 | return streamPut(((AosShellChannel*)instance)->iochannel->asyncchannel, b);
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68 | } else {
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69 | return MSG_RESET;
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70 | } |
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71 | } |
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72 | |||
73 | /**
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74 | * @brief Implementation of the BaseAsynchronous get() method (inherited from BaseSequentialStream).
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75 | */
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76 | static msg_t _channelget(void *instance) |
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77 | { |
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78 | return streamGet(((AosShellChannel*)instance)->iochannel->asyncchannel);
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79 | } |
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80 | |||
81 | /**
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82 | * @brief Implementation of the BaseAsynchronous putt() method.
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83 | */
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84 | static msg_t _channelputt(void *instance, uint8_t b, systime_t time) |
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85 | { |
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86 | if (((AosShellChannel*)instance)->flags & AOS_SHELLCHANNEL_OUTPUT_ENABLED) {
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87 | return chnPutTimeout(((AosShellChannel*)instance)->iochannel->asyncchannel, b, time);
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88 | } else {
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89 | return MSG_RESET;
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90 | } |
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91 | } |
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92 | |||
93 | /**
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94 | * @brief Implementation of the BaseAsynchronous gett() method.
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95 | */
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96 | static msg_t _channelgett(void *instance, systime_t time) |
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97 | { |
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98 | return chnGetTimeout(((AosShellChannel*)instance)->iochannel->asyncchannel, time);
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99 | } |
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100 | |||
101 | /**
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102 | * @brief Implementation of the BaseAsynchronous writet() method.
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103 | */
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104 | static size_t _channelwritet(void *instance, const uint8_t *bp, size_t n, systime_t time) |
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105 | { |
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106 | if (((AosShellChannel*)instance)->flags & AOS_SHELLCHANNEL_OUTPUT_ENABLED) {
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107 | return chnWriteTimeout(((AosShellChannel*)instance)->iochannel->asyncchannel, bp, n, time);
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108 | } else {
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109 | return 0; |
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110 | } |
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111 | } |
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112 | |||
113 | /**
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114 | * @brief Implementation of the BaseAsynchronous readt() method.
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115 | */
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116 | static size_t _channelreadt(void *instance, uint8_t *bp, size_t n, systime_t time) |
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117 | { |
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118 | return chnReadTimeout(((AosShellChannel*)instance)->iochannel->asyncchannel, bp, n, time);
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119 | } |
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120 | |||
121 | static const struct AosShellChannelVMT _channelvmt = { |
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122 | _channelwrite, |
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123 | _channelread, |
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124 | _channelput, |
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125 | _channelget, |
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126 | _channelputt, |
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127 | _channelgett, |
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128 | _channelwritet, |
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129 | _channelreadt, |
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130 | }; |
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131 | |||
132 | static size_t _streamwrite(void *instance, const uint8_t *bp, size_t n) |
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133 | { |
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134 | aosDbgCheck(instance != NULL);
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135 | |||
136 | // local variables
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137 | AosShellChannel* channel = ((AosShellStream*)instance)->channel; |
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138 | size_t bytes; |
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139 | size_t maxbytes = 0;
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140 | |||
141 | // iterate through the list of channels
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142 | while (channel != NULL) { |
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143 | bytes = streamWrite(channel, bp, n); |
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144 | maxbytes = (bytes > maxbytes) ? bytes : maxbytes; |
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145 | channel = channel->next; |
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146 | } |
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147 | |||
148 | return maxbytes;
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149 | } |
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150 | |||
151 | static size_t _stremread(void *instance, uint8_t *bp, size_t n) |
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152 | { |
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153 | (void)instance;
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154 | (void)bp;
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155 | (void)n;
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156 | |||
157 | return 0; |
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158 | } |
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159 | |||
160 | static msg_t _streamput(void *instance, uint8_t b) |
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161 | { |
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162 | aosDbgCheck(instance != NULL);
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163 | |||
164 | // local variables
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165 | AosShellChannel* channel = ((AosShellStream*)instance)->channel; |
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166 | msg_t ret; |
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167 | |||
168 | // iterate through the list of channels
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169 | while (channel != NULL) { |
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170 | ret = streamPut(channel, b); |
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171 | if (ret != MSG_OK) {
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172 | return ret;
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173 | } |
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174 | channel = channel->next; |
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175 | } |
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176 | |||
177 | return MSG_OK;
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178 | } |
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179 | |||
180 | static msg_t _streamget(void *instance) |
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181 | { |
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182 | (void)instance;
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183 | |||
184 | return 0; |
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185 | } |
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186 | |||
187 | static const struct AosShellStreamVMT _streamvmt = { |
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188 | _streamwrite, |
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189 | _stremread, |
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190 | _streamput, |
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191 | _streamget, |
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192 | }; |
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193 | |||
194 | e545e620 | Thomas Schöpping | /**
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195 | * @brief Enumerator of special keyboard keys.
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196 | */
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197 | typedef enum special_key { |
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198 | KEY_UNKNOWN, /**< any/unknow key */
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199 | KEY_AMBIGUOUS, /**< key is ambiguous */
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200 | KEY_TAB, /**< tabulator key */
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201 | KEY_ESCAPE, /**< escape key */
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202 | KEY_BACKSPACE, /**< backspace key */
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203 | KEY_INSERT, /**< insert key */
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204 | KEY_DELETE, /**< delete key */
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205 | KEY_HOME, /**< home key */
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206 | KEY_END, /**< end key */
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207 | KEY_PAGE_UP, /**< page up key */
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208 | KEY_PAGE_DOWN, /**< page down key */
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209 | KEY_ARROW_UP, /**< arrow up key */
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210 | KEY_ARROW_DOWN, /**< arrow down key */
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211 | KEY_ARROW_LEFT, /**< arrow left key */
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212 | KEY_ARROW_RIGHT, /**< arrow right key */
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213 | } special_key_t; |
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214 | |||
215 | /**
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216 | * @brief Enumerator for case (in)sensitive character matching.
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217 | */
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218 | typedef enum charmatch { |
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219 | CHAR_MATCH_NOT = 0, /**< Characters do not match at all. */ |
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220 | CHAR_MATCH_NCASE = 1, /**< Characters would match case insensitive. */ |
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221 | CHAR_MATCH_CASE = 2, /**< Characters do match with case. */ |
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222 | } charmatch_t; |
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223 | |||
224 | /**
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225 | * @brief Print the shell prompt
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226 | * @details Depending on the configuration flags, the system uptime is printed before the prompt string.
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227 | *
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228 | * @param[in] shell Pointer to the shell object.
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229 | */
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230 | static void _printPrompt(aos_shell_t* shell) |
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231 | { |
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232 | aosDbgCheck(shell != NULL);
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233 | |||
234 | // print the system uptime before prompt is configured
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235 | if (shell->config & AOS_SHELL_CONFIG_PROMPT_UPTIME) {
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236 | // get current system uptime
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237 | aos_timestamp_t uptime; |
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238 | aosSysGetUptime(&uptime); |
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239 | |||
240 | ba516b61 | Thomas Schöpping | chprintf((BaseSequentialStream*)&shell->stream, "[%01u:%02u:%02u:%02u:%03u:%03u] ",
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241 | (uint32_t)(uptime / MICROSECONDS_PER_DAY), |
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242 | (uint8_t)(uptime % MICROSECONDS_PER_DAY / MICROSECONDS_PER_HOUR), |
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243 | (uint8_t)(uptime % MICROSECONDS_PER_HOUR / MICROSECONDS_PER_MINUTE), |
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244 | (uint8_t)(uptime % MICROSECONDS_PER_MINUTE / MICROSECONDS_PER_SECOND), |
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245 | (uint16_t)(uptime % MICROSECONDS_PER_SECOND / MICROSECONDS_PER_MILLISECOND), |
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246 | (uint16_t)(uptime % MICROSECONDS_PER_MILLISECOND / MICROSECONDS_PER_MICROSECOND)); |
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247 | e545e620 | Thomas Schöpping | } |
248 | |||
249 | // print the actual prompt string
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250 | if (shell->prompt && !(shell->config & AOS_SHELL_CONFIG_PROMPT_MINIMAL)) {
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251 | ba516b61 | Thomas Schöpping | chprintf((BaseSequentialStream*)&shell->stream, "%s$ ", shell->prompt);
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252 | e545e620 | Thomas Schöpping | } else {
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253 | ba516b61 | Thomas Schöpping | chprintf((BaseSequentialStream*)&shell->stream, "%>$ ");
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254 | e545e620 | Thomas Schöpping | } |
255 | |||
256 | return;
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257 | } |
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258 | |||
259 | /**
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260 | * @brief Interprete a escape sequence
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261 | *
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262 | * @param[in] seq Character sequence to interprete.
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263 | * Must be terminated by NUL byte.
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264 | *
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265 | * @return A @p special_key value.
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266 | */
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267 | static special_key_t _interpreteEscapeSequence(const char seq[]) |
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268 | { |
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269 | // local variables
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270 | bool ambiguous = false; |
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271 | int cmp = 0; |
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272 | |||
273 | // TAB
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274 | /* not supported yet; use "\x09" instead */
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275 | |||
276 | // BACKSPACE
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277 | /* not supported yet; use "\x08" instead */
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278 | |||
279 | // ESCAPE
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280 | cmp = strcmp(seq, "\x1B");
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281 | if (cmp == 0) { |
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282 | return KEY_ESCAPE;
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283 | } else {
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284 | ambiguous |= (cmp < 0);
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285 | } |
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286 | |||
287 | // INSERT
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288 | cmp = strcmp(seq, "\x1B\x5B\x32\x7E");
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289 | if (cmp == 0) { |
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290 | return KEY_INSERT;
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291 | } else {
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292 | ambiguous |= (cmp < 0);
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293 | } |
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294 | |||
295 | // DELETE
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296 | cmp = strcmp(seq, "\x1B\x5B\x33\x7E");
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297 | if (cmp == 0) { |
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298 | return KEY_DELETE;
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299 | } else {
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300 | ambiguous |= (cmp < 0);
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301 | } |
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302 | |||
303 | // HOME
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304 | cmp = strcmp(seq, "\x1B\x4F\x48");
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305 | if (cmp == 0) { |
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306 | return KEY_HOME;
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307 | } else {
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308 | ambiguous |= (cmp < 0);
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309 | } |
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310 | |||
311 | // END
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312 | cmp = strcmp(seq, "\x1B\x4F\x46");
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313 | if (cmp == 0) { |
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314 | return KEY_END;
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315 | } else {
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316 | ambiguous |= (cmp < 0);
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317 | } |
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318 | |||
319 | // PAGE UP
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320 | cmp = strcmp(seq, "\x1B\x5B\x35\x7E");
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321 | if (cmp == 0) { |
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322 | return KEY_PAGE_UP;
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323 | } else {
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324 | ambiguous |= (cmp < 0);
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325 | } |
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326 | |||
327 | // PAGE DOWN
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328 | cmp = strcmp(seq, "\x1B\x5B\x36\x7E");
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329 | if (cmp == 0) { |
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330 | return KEY_PAGE_DOWN;
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331 | } else {
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332 | ambiguous |= (cmp < 0);
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333 | } |
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334 | |||
335 | // ARROW UP
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336 | cmp = strcmp(seq, "\x1B\x5B\x41");
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337 | if (cmp == 0) { |
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338 | return KEY_ARROW_UP;
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339 | } else {
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340 | ambiguous |= (cmp < 0);
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341 | } |
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342 | |||
343 | // ARROW DOWN
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344 | cmp = strcmp(seq, "\x1B\x5B\x42");
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345 | if (cmp == 0) { |
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346 | return KEY_ARROW_DOWN;
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347 | } else {
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348 | ambiguous |= (cmp < 0);
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349 | } |
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350 | |||
351 | // ARROW LEFT
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352 | cmp = strcmp(seq, "\x1B\x5B\x44");
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353 | if (cmp == 0) { |
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354 | return KEY_ARROW_LEFT;
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355 | } else {
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356 | ambiguous |= (cmp < 0);
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357 | } |
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358 | |||
359 | // ARROW RIGHT
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360 | cmp = strcmp(seq, "\x1B\x5B\x43");
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361 | if (cmp == 0) { |
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362 | return KEY_ARROW_RIGHT;
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363 | } else {
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364 | ambiguous |= (cmp < 0);
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365 | } |
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366 | |||
367 | return ambiguous ? KEY_AMBIGUOUS : KEY_UNKNOWN;
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368 | } |
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369 | |||
370 | /**
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371 | * @brief Move the cursor in the terminal
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372 | *
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373 | * @param[in] shell Pointer to the shell object.
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374 | * @param[in] from Starting position of the cursor.
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375 | * @param[in] to Target position to move the cursor to.
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376 | *
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377 | * @return The number of positions moved.
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378 | */
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379 | static int _moveCursor(aos_shell_t* shell, const size_t from, const size_t to) |
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380 | { |
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381 | aosDbgCheck(shell != NULL);
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382 | |||
383 | // local variables
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384 | size_t pos = from; |
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385 | |||
386 | // move cursor left by printing backspaces
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387 | while (pos > to) {
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388 | ba516b61 | Thomas Schöpping | streamPut(&shell->stream, '\b');
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389 | e545e620 | Thomas Schöpping | --pos; |
390 | } |
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391 | |||
392 | // move cursor right by printing line content
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393 | while (pos < to) {
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394 | ba516b61 | Thomas Schöpping | streamPut(&shell->stream, shell->line[pos]); |
395 | e545e620 | Thomas Schöpping | ++pos; |
396 | } |
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397 | |||
398 | return (int)pos - (int)from; |
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399 | } |
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400 | |||
401 | /**
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402 | * @brief Print content of the shell line
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403 | *
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404 | * @param[in] shell Pointer to the shell object.
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405 | * @param[in] from First position to start printing from.
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406 | * @param[in] to Position after the last character to print.
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407 | *
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408 | * @return Number of characters printed.
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409 | */
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410 | static inline size_t _printLine(aos_shell_t* shell, const size_t from, const size_t to) |
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411 | { |
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412 | aosDbgCheck(shell != NULL);
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413 | |||
414 | // local variables
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415 | size_t cnt; |
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416 | |||
417 | for (cnt = 0; from + cnt < to; ++cnt) { |
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418 | ba516b61 | Thomas Schöpping | streamPut(&shell->stream, shell->line[from + cnt]); |
419 | e545e620 | Thomas Schöpping | } |
420 | |||
421 | return cnt;
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422 | } |
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423 | |||
424 | /**
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425 | * @brief Compare two characters.
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426 | *
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427 | * @param[in] lhs First character to compare.
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428 | * @param[in] rhs Second character to compare.
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429 | *
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430 | * @return How well the characters match.
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431 | */
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432 | static inline charmatch_t _charcmp(char lhs, char rhs) |
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433 | { |
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434 | // if lhs is a upper case letter and rhs is a lower case letter
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435 | if (lhs >= 'A' && lhs <= 'Z' && rhs >= 'a' && rhs <= 'z') { |
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436 | return (lhs == (rhs - 'a' + 'A')) ? CHAR_MATCH_NCASE : CHAR_MATCH_NOT; |
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437 | } |
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438 | // if lhs is a lower case letter and rhs is a upper case letter
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439 | else if (lhs >= 'a' && lhs <= 'z' && rhs >= 'A' && rhs <= 'Z') { |
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440 | return ((lhs - 'a' + 'A') == rhs) ? CHAR_MATCH_NCASE : CHAR_MATCH_NOT; |
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441 | } |
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442 | // default
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443 | else {
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444 | return (lhs == rhs) ? CHAR_MATCH_CASE : CHAR_MATCH_NOT;
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445 | } |
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446 | } |
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447 | |||
448 | /**
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449 | * @brief Maps an character from ASCII to a modified custom encoding.
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450 | * @details The custom character encoding is very similar to ASCII and has the following structure:
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451 | * 0x00=NULL ... 0x40='@' (identically to ASCII)
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452 | * 0x4A='a'; 0x4B='A'; 0x4C='b'; 0x4D='B' ... 0x73='z'; 0x74='Z' (custom letter order)
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453 | * 0x75='[' ... 0x7A='`' (0x5B..0x60 is ASCII)
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454 | * 0x7B='{' ... 0x7F=DEL (identically to ASCII)
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455 | *
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456 | * @param[in] c Character to map to the custom encoding.
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457 | *
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458 | * @return The customly encoded character.
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459 | */
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460 | static inline char _mapAscii2Custom(const char c) |
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461 | { |
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462 | if (c >= 'A' && c <= 'Z') { |
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463 | return ((c - 'A') * 2) + 'A' + 1; |
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464 | } else if (c > 'Z' && c < 'a') { |
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465 | return c + ('z' - 'a') + 1; |
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466 | } else if (c >= 'a' && c <= 'z') { |
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467 | return ((c - 'a') * 2) + 'A'; |
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468 | } else {
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469 | return c;
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470 | } |
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471 | } |
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472 | |||
473 | /**
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474 | * @brief Compares two strings wrt letter case.
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475 | * @details Comparisson uses a custom character encoding or mapping.
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476 | * See @p _mapAscii2Custom for details.
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477 | *
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478 | * @param[in] str1 First string to compare.
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479 | * @param[in] str2 Second string to compare.
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480 | * @param[in] cs Flag indicating whether comparison shall be case sensitive.
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481 | * @param[in,out] n Maximum number of character to compare (in) and number of matching characters (out).
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482 | * If a null pointer is specified, this parameter is ignored.
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483 | * If the value pointed to is zero, comarison will not be limited.
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484 | * @param[out] m Optional indicator whether there was at least one case mismatch.
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485 | *
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486 | * @return Integer value indicating the relationship between the strings.
|
||
487 | * @retval <0 The first character that does not match has a lower value in str1 than in str2.
|
||
488 | * @retval 0 The contents of both strings are equal.
|
||
489 | * @retval >0 The first character that does not match has a greater value in str1 than in str2.
|
||
490 | */
|
||
491 | static int _strccmp(const char *str1, const char *str2, bool cs, size_t* n, charmatch_t* m) |
||
492 | { |
||
493 | aosDbgCheck(str1 != NULL);
|
||
494 | aosDbgCheck(str2 != NULL);
|
||
495 | |||
496 | // initialize variables
|
||
497 | if (m) {
|
||
498 | *m = CHAR_MATCH_NOT; |
||
499 | } |
||
500 | size_t i = 0;
|
||
501 | |||
502 | // iterate through the strings
|
||
503 | while ((n == NULL) || (*n == 0) || (*n > 0 && i < *n)) { |
||
504 | // break on NUL
|
||
505 | if (str1[i] == '\0' || str2[i] == '\0') { |
||
506 | if (n) {
|
||
507 | *n = i; |
||
508 | } |
||
509 | break;
|
||
510 | } |
||
511 | // compare character
|
||
512 | const charmatch_t match = _charcmp(str1[i], str2[i]);
|
||
513 | if ((match == CHAR_MATCH_CASE) || (!cs && match == CHAR_MATCH_NCASE)) {
|
||
514 | if (m != NULL && *m != CHAR_MATCH_NCASE) { |
||
515 | *m = match; |
||
516 | } |
||
517 | ++i; |
||
518 | } else {
|
||
519 | if (n) {
|
||
520 | *n = i; |
||
521 | } |
||
522 | break;
|
||
523 | } |
||
524 | } |
||
525 | |||
526 | return _mapAscii2Custom(str1[i]) - _mapAscii2Custom(str2[i]);
|
||
527 | } |
||
528 | |||
529 | ba516b61 | Thomas Schöpping | static aos_status_t _readChannel(aos_shell_t* shell, AosShellChannel* channel, size_t* n)
|
530 | e545e620 | Thomas Schöpping | { |
531 | aosDbgCheck(shell != NULL);
|
||
532 | ba516b61 | Thomas Schöpping | aosDbgCheck(channel != NULL);
|
533 | aosDbgCheck(n != NULL);
|
||
534 | e545e620 | Thomas Schöpping | |
535 | // local variables
|
||
536 | ba516b61 | Thomas Schöpping | aos_shellaction_t action = AOS_SHELL_ACTION_NONE; |
537 | e545e620 | Thomas Schöpping | char c;
|
538 | |||
539 | ba516b61 | Thomas Schöpping | // initialize output variables
|
540 | *n = 0;
|
||
541 | |||
542 | // read character by character from the channel
|
||
543 | while (chnReadTimeout(channel, (uint8_t*)&c, 1, TIME_IMMEDIATE)) { |
||
544 | e545e620 | Thomas Schöpping | special_key_t key = KEY_UNKNOWN; |
545 | |||
546 | // parse escape sequence
|
||
547 | ba516b61 | Thomas Schöpping | if (shell->inputdata.escp > 0) { |
548 | shell->inputdata.escseq[shell->inputdata.escp] = c; |
||
549 | ++shell->inputdata.escp; |
||
550 | key = _interpreteEscapeSequence(shell->inputdata.escseq); |
||
551 | e545e620 | Thomas Schöpping | if (key == KEY_AMBIGUOUS) {
|
552 | // read next byte to resolve ambiguity
|
||
553 | continue;
|
||
554 | } else {
|
||
555 | ba516b61 | Thomas Schöpping | /*
|
556 | * If the escape sequence could either be parsed sucessfully
|
||
557 | * or there is no match (KEY_UNKNOWN),
|
||
558 | * reset the sequence variable and interprete key/character
|
||
559 | */
|
||
560 | shell->inputdata.escp = 0;
|
||
561 | memset(shell->inputdata.escseq, '\0', sizeof(shell->inputdata.escseq)*sizeof(shell->inputdata.escseq[0])); |
||
562 | e545e620 | Thomas Schöpping | } |
563 | } |
||
564 | |||
565 | ba516b61 | Thomas Schöpping | /* interprete keys or character */
|
566 | e545e620 | Thomas Schöpping | { |
567 | ba516b61 | Thomas Schöpping | // default
|
568 | action = AOS_SHELL_ACTION_NONE; |
||
569 | |||
570 | // printable character
|
||
571 | if (key == KEY_UNKNOWN && c >= '\x20' && c <= '\x7E') { |
||
572 | action = AOS_SHELL_ACTION_READCHAR; |
||
573 | } |
||
574 | |||
575 | // tab key or character
|
||
576 | else if (key == KEY_TAB || c == '\x09') { |
||
577 | /*
|
||
578 | * pressing tab once applies auto fill
|
||
579 | * pressing tab a second time prints suggestions
|
||
580 | */
|
||
581 | if (shell->inputdata.lastaction == AOS_SHELL_ACTION_AUTOFILL || shell->inputdata.lastaction == AOS_SHELL_ACTION_SUGGEST) {
|
||
582 | action = AOS_SHELL_ACTION_SUGGEST; |
||
583 | e545e620 | Thomas Schöpping | } else {
|
584 | ba516b61 | Thomas Schöpping | action = AOS_SHELL_ACTION_AUTOFILL; |
585 | e545e620 | Thomas Schöpping | } |
586 | ba516b61 | Thomas Schöpping | } |
587 | |||
588 | // INS key
|
||
589 | else if (key == KEY_INSERT) { |
||
590 | action = AOS_SHELL_ACTION_INSERTTOGGLE; |
||
591 | } |
||
592 | |||
593 | // DEL key or character
|
||
594 | else if (key == KEY_DELETE || c == '\x7F') { |
||
595 | // ignore if cursor is at very right
|
||
596 | if (shell->inputdata.cursorpos < shell->inputdata.lineend) {
|
||
597 | action = AOS_SHELL_ACTION_DELETEFORWARD; |
||
598 | e545e620 | Thomas Schöpping | } |
599 | ba516b61 | Thomas Schöpping | } |
600 | |||
601 | // backspace key or character
|
||
602 | else if (key == KEY_BACKSPACE || c == '\x08') { |
||
603 | // ignore if cursor is at very left
|
||
604 | if (shell->inputdata.cursorpos > 0) { |
||
605 | action = AOS_SHELL_ACTION_DELETEBACKWARD; |
||
606 | e545e620 | Thomas Schöpping | } |
607 | ba516b61 | Thomas Schöpping | } |
608 | |||
609 | // 'page up' of 'arrow up' key
|
||
610 | else if (key == KEY_PAGE_UP || key == KEY_ARROW_UP) { |
||
611 | e545e620 | Thomas Schöpping | // ignore if there was some input
|
612 | ba516b61 | Thomas Schöpping | if (shell->inputdata.noinput) {
|
613 | action = AOS_SHELL_ACTION_RECALLLAST; |
||
614 | e545e620 | Thomas Schöpping | } |
615 | ba516b61 | Thomas Schöpping | } |
616 | |||
617 | // 'page down' key, 'arrow done' key, 'end of test' character or 'end of transmission' character
|
||
618 | else if (key == KEY_PAGE_DOWN || key == KEY_ARROW_DOWN || c == '\x03' || c == '\x03') { |
||
619 | e545e620 | Thomas Schöpping | // ignore if line is empty
|
620 | ba516b61 | Thomas Schöpping | if (shell->inputdata.lineend > 0) { |
621 | action = AOS_SHELL_ACTION_CLEAR; |
||
622 | e545e620 | Thomas Schöpping | } |
623 | ba516b61 | Thomas Schöpping | } |
624 | |||
625 | // 'home' key
|
||
626 | else if (key == KEY_HOME) { |
||
627 | e545e620 | Thomas Schöpping | // ignore if cursor is very left
|
628 | ba516b61 | Thomas Schöpping | if (shell->inputdata.cursorpos > 0) { |
629 | action = AOS_SHELL_ACTION_CURSOR2START; |
||
630 | e545e620 | Thomas Schöpping | } |
631 | ba516b61 | Thomas Schöpping | } |
632 | |||
633 | // 'end' key
|
||
634 | else if (key == KEY_END) { |
||
635 | // ignore if cursos is very right
|
||
636 | if (shell->inputdata.cursorpos < shell->inputdata.lineend) {
|
||
637 | action = AOS_SHELL_ACTION_CURSOR2END; |
||
638 | e545e620 | Thomas Schöpping | } |
639 | ba516b61 | Thomas Schöpping | } |
640 | |||
641 | // 'arrow left' key
|
||
642 | else if (key == KEY_ARROW_LEFT) { |
||
643 | e545e620 | Thomas Schöpping | // ignore if cursor is very left
|
644 | ba516b61 | Thomas Schöpping | if (shell->inputdata.cursorpos > 0) { |
645 | action = AOS_SHELL_ACTION_CURSORLEFT; |
||
646 | e545e620 | Thomas Schöpping | } |
647 | ba516b61 | Thomas Schöpping | } |
648 | |||
649 | // 'arrow right' key
|
||
650 | else if (key == KEY_ARROW_RIGHT) { |
||
651 | // irgnore if cursor is very right
|
||
652 | if (shell->inputdata.cursorpos < shell->inputdata.lineend) {
|
||
653 | action = AOS_SHELL_ACTION_CURSORRIGHT; |
||
654 | e545e620 | Thomas Schöpping | } |
655 | ba516b61 | Thomas Schöpping | } |
656 | |||
657 | // carriage return ('\r') or line feed ('\n') character
|
||
658 | else if (c == '\x0D' || c == '\x0A') { |
||
659 | action = AOS_SHELL_ACTION_EXECUTE; |
||
660 | } |
||
661 | |||
662 | // ESC key or [ESCAPE] character
|
||
663 | else if (key == KEY_ESCAPE || c == '\x1B') { |
||
664 | action = AOS_SHELL_ACTION_ESCSTART; |
||
665 | e545e620 | Thomas Schöpping | } |
666 | } |
||
667 | |||
668 | /* handle function */
|
||
669 | ba516b61 | Thomas Schöpping | switch (action) {
|
670 | case AOS_SHELL_ACTION_READCHAR:
|
||
671 | { |
||
672 | e545e620 | Thomas Schöpping | // line is full
|
673 | ba516b61 | Thomas Schöpping | if (shell->inputdata.lineend + 1 >= shell->linesize) { |
674 | _moveCursor(shell, shell->inputdata.cursorpos, shell->inputdata.lineend); |
||
675 | chprintf((BaseSequentialStream*)&shell->stream, "\n\tmaximum line width reached\n");
|
||
676 | e545e620 | Thomas Schöpping | _printPrompt(shell); |
677 | ba516b61 | Thomas Schöpping | _printLine(shell, 0, shell->inputdata.lineend);
|
678 | _moveCursor(shell, shell->inputdata.lineend, shell->inputdata.cursorpos); |
||
679 | e545e620 | Thomas Schöpping | } |
680 | // read character
|
||
681 | else {
|
||
682 | // clear old line content on first input
|
||
683 | ba516b61 | Thomas Schöpping | if (shell->inputdata.noinput) {
|
684 | e545e620 | Thomas Schöpping | memset(shell->line, '\0', shell->linesize);
|
685 | ba516b61 | Thomas Schöpping | shell->inputdata.noinput = false;
|
686 | e545e620 | Thomas Schöpping | } |
687 | // overwrite content
|
||
688 | if (shell->config & AOS_SHELL_CONFIG_INPUT_OVERWRITE) {
|
||
689 | ba516b61 | Thomas Schöpping | shell->line[shell->inputdata.cursorpos] = c; |
690 | ++shell->inputdata.cursorpos; |
||
691 | shell->inputdata.lineend = (shell->inputdata.cursorpos > shell->inputdata.lineend) ? shell->inputdata.cursorpos : shell->inputdata.lineend; |
||
692 | streamPut(&shell->stream, (uint8_t)c); |
||
693 | e545e620 | Thomas Schöpping | } |
694 | // insert character
|
||
695 | else {
|
||
696 | ba516b61 | Thomas Schöpping | memmove(&(shell->line[shell->inputdata.cursorpos+1]), &(shell->line[shell->inputdata.cursorpos]), shell->inputdata.lineend - shell->inputdata.cursorpos);
|
697 | shell->line[shell->inputdata.cursorpos] = c; |
||
698 | ++shell->inputdata.lineend; |
||
699 | _printLine(shell, shell->inputdata.cursorpos, shell->inputdata.lineend); |
||
700 | ++shell->inputdata.cursorpos; |
||
701 | _moveCursor(shell, shell->inputdata.lineend, shell->inputdata.cursorpos); |
||
702 | e545e620 | Thomas Schöpping | } |
703 | } |
||
704 | break;
|
||
705 | ba516b61 | Thomas Schöpping | } |
706 | e545e620 | Thomas Schöpping | |
707 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_AUTOFILL:
|
708 | e545e620 | Thomas Schöpping | { |
709 | const char* fill = shell->line; |
||
710 | ba516b61 | Thomas Schöpping | size_t cmatch = shell->inputdata.cursorpos; |
711 | e545e620 | Thomas Schöpping | charmatch_t matchlevel = CHAR_MATCH_NOT; |
712 | size_t n; |
||
713 | // iterate through command list
|
||
714 | for (aos_shellcommand_t* cmd = shell->commands; cmd != NULL; cmd = cmd->next) { |
||
715 | // compare current match with command
|
||
716 | n = cmatch; |
||
717 | charmatch_t mlvl = CHAR_MATCH_NOT; |
||
718 | _strccmp(fill, cmd->name, shell->config & AOS_SHELL_CONFIG_MATCH_CASE, (n == 0) ? NULL : &n, &mlvl); |
||
719 | const int cmp = (n < cmatch) ? |
||
720 | (n - cmatch) : |
||
721 | (cmd->name[n] != '\0') ?
|
||
722 | strlen(cmd->name) - n : |
||
723 | 0;
|
||
724 | // if an exact match was found
|
||
725 | ba516b61 | Thomas Schöpping | if (cmatch + cmp == shell->inputdata.cursorpos) {
|
726 | cmatch = shell->inputdata.cursorpos; |
||
727 | e545e620 | Thomas Schöpping | fill = cmd->name; |
728 | // break the loop only if there are no case mismatches with the input
|
||
729 | ba516b61 | Thomas Schöpping | n = shell->inputdata.cursorpos; |
730 | e545e620 | Thomas Schöpping | _strccmp(fill, shell->line, false, &n, &mlvl);
|
731 | if (mlvl == CHAR_MATCH_CASE) {
|
||
732 | break;
|
||
733 | } |
||
734 | } |
||
735 | // if a not exact match was found
|
||
736 | ba516b61 | Thomas Schöpping | else if (cmatch + cmp > shell->inputdata.cursorpos) { |
737 | e545e620 | Thomas Schöpping | // if this is the first one
|
738 | if (fill == shell->line) {
|
||
739 | cmatch += cmp; |
||
740 | fill = cmd->name; |
||
741 | } |
||
742 | // if this is a worse one
|
||
743 | else if ((cmp < 0) || (cmp == 0 && mlvl == CHAR_MATCH_CASE)) { |
||
744 | cmatch += cmp; |
||
745 | } |
||
746 | } |
||
747 | // non matching commands are ignored
|
||
748 | else {}
|
||
749 | } |
||
750 | // evaluate if there are case mismatches
|
||
751 | n = cmatch; |
||
752 | _strccmp(shell->line, fill, shell->config & AOS_SHELL_CONFIG_MATCH_CASE, &n, &matchlevel); |
||
753 | // print the auto fill if any
|
||
754 | ba516b61 | Thomas Schöpping | if (cmatch > shell->inputdata.cursorpos || (cmatch == shell->inputdata.cursorpos && matchlevel == CHAR_MATCH_NCASE)) {
|
755 | shell->inputdata.noinput = false;
|
||
756 | e545e620 | Thomas Schöpping | // limit auto fill so it will not overflow the line width
|
757 | ba516b61 | Thomas Schöpping | if (shell->inputdata.lineend + (cmatch - shell->inputdata.cursorpos) > shell->linesize) {
|
758 | cmatch = shell->linesize - shell->inputdata.lineend + shell->inputdata.cursorpos; |
||
759 | e545e620 | Thomas Schöpping | } |
760 | // move trailing memory further in the line
|
||
761 | ba516b61 | Thomas Schöpping | memmove(&(shell->line[cmatch]), &(shell->line[shell->inputdata.cursorpos]), shell->inputdata.lineend - shell->inputdata.cursorpos); |
762 | shell->inputdata.lineend += cmatch - shell->inputdata.cursorpos; |
||
763 | e545e620 | Thomas Schöpping | // if there was no incorrect case when matching
|
764 | if (matchlevel == CHAR_MATCH_CASE) {
|
||
765 | // insert fill command name to line
|
||
766 | ba516b61 | Thomas Schöpping | memcpy(&(shell->line[shell->inputdata.cursorpos]), &(fill[shell->inputdata.cursorpos]), cmatch - shell->inputdata.cursorpos); |
767 | e545e620 | Thomas Schöpping | // print the output
|
768 | ba516b61 | Thomas Schöpping | _printLine(shell, shell->inputdata.cursorpos, shell->inputdata.lineend); |
769 | e545e620 | Thomas Schöpping | } else {
|
770 | // overwrite line with fill command name
|
||
771 | memcpy(shell->line, fill, cmatch); |
||
772 | // reprint the whole line
|
||
773 | ba516b61 | Thomas Schöpping | _moveCursor(shell, shell->inputdata.cursorpos, 0);
|
774 | _printLine(shell, 0, shell->inputdata.lineend);
|
||
775 | e545e620 | Thomas Schöpping | } |
776 | // move cursor to the end of the matching sequence
|
||
777 | ba516b61 | Thomas Schöpping | shell->inputdata.cursorpos = cmatch; |
778 | _moveCursor(shell, shell->inputdata.lineend, shell->inputdata.cursorpos); |
||
779 | e545e620 | Thomas Schöpping | } |
780 | break;
|
||
781 | } |
||
782 | |||
783 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_SUGGEST:
|
784 | e545e620 | Thomas Schöpping | { |
785 | unsigned int matches = 0; |
||
786 | // iterate through command list
|
||
787 | for (aos_shellcommand_t* cmd = shell->commands; cmd != NULL; cmd = cmd->next) { |
||
788 | // compare line content with command, excpet if cursorpos=0
|
||
789 | ba516b61 | Thomas Schöpping | size_t i = shell->inputdata.cursorpos; |
790 | if (shell->inputdata.cursorpos > 0) { |
||
791 | e545e620 | Thomas Schöpping | _strccmp(shell->line, cmd->name, true, &i, NULL); |
792 | } |
||
793 | ba516b61 | Thomas Schöpping | const int cmp = (i < shell->inputdata.cursorpos) ? |
794 | (i - shell->inputdata.cursorpos) : |
||
795 | e545e620 | Thomas Schöpping | (cmd->name[i] != '\0') ?
|
796 | strlen(cmd->name) - i : |
||
797 | 0;
|
||
798 | // if a match was found
|
||
799 | if (cmp > 0) { |
||
800 | // if this is the first one
|
||
801 | if (matches == 0) { |
||
802 | ba516b61 | Thomas Schöpping | _moveCursor(shell, shell->inputdata.cursorpos, shell->inputdata.lineend); |
803 | streamPut(&shell->stream, '\n');
|
||
804 | e545e620 | Thomas Schöpping | } |
805 | // print the command
|
||
806 | ba516b61 | Thomas Schöpping | chprintf((BaseSequentialStream*)&shell->stream, "\t%s\n", cmd->name);
|
807 | e545e620 | Thomas Schöpping | ++matches; |
808 | } |
||
809 | } |
||
810 | // reprint the prompt and line if any matches have been found
|
||
811 | if (matches > 0) { |
||
812 | _printPrompt(shell); |
||
813 | ba516b61 | Thomas Schöpping | _printLine(shell, 0, shell->inputdata.lineend);
|
814 | _moveCursor(shell, shell->inputdata.lineend, shell->inputdata.cursorpos); |
||
815 | shell->inputdata.noinput = false;
|
||
816 | e545e620 | Thomas Schöpping | } |
817 | break;
|
||
818 | } |
||
819 | |||
820 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_INSERTTOGGLE:
|
821 | { |
||
822 | e545e620 | Thomas Schöpping | if (shell->config & AOS_SHELL_CONFIG_INPUT_OVERWRITE) {
|
823 | shell->config &= ~AOS_SHELL_CONFIG_INPUT_OVERWRITE; |
||
824 | } else {
|
||
825 | shell->config |= AOS_SHELL_CONFIG_INPUT_OVERWRITE; |
||
826 | } |
||
827 | break;
|
||
828 | ba516b61 | Thomas Schöpping | } |
829 | e545e620 | Thomas Schöpping | |
830 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_DELETEFORWARD:
|
831 | { |
||
832 | --shell->inputdata.lineend; |
||
833 | memmove(&(shell->line[shell->inputdata.cursorpos]), &(shell->line[shell->inputdata.cursorpos+1]), shell->inputdata.lineend - shell->inputdata.cursorpos);
|
||
834 | _printLine(shell, shell->inputdata.cursorpos, shell->inputdata.lineend); |
||
835 | streamPut(&shell->stream, ' ');
|
||
836 | _moveCursor(shell, shell->inputdata.lineend + 1, shell->inputdata.cursorpos);
|
||
837 | e545e620 | Thomas Schöpping | break;
|
838 | ba516b61 | Thomas Schöpping | } |
839 | e545e620 | Thomas Schöpping | |
840 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_DELETEBACKWARD:
|
841 | { |
||
842 | --shell->inputdata.cursorpos; |
||
843 | memmove(&(shell->line[shell->inputdata.cursorpos]), &(shell->line[shell->inputdata.cursorpos+1]), shell->inputdata.lineend - shell->inputdata.cursorpos);
|
||
844 | --shell->inputdata.lineend; |
||
845 | shell->line[shell->inputdata.lineend] = '\0';
|
||
846 | _moveCursor(shell, shell->inputdata.cursorpos + 1, shell->inputdata.cursorpos);
|
||
847 | _printLine(shell, shell->inputdata.cursorpos, shell->inputdata.lineend); |
||
848 | streamPut(&shell->stream, ' ');
|
||
849 | _moveCursor(shell, shell->inputdata.lineend+1, shell->inputdata.cursorpos);
|
||
850 | e545e620 | Thomas Schöpping | break;
|
851 | ba516b61 | Thomas Schöpping | } |
852 | e545e620 | Thomas Schöpping | |
853 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_RECALLLAST:
|
854 | e545e620 | Thomas Schöpping | { |
855 | // replace any intermediate NUL bytes with spaces
|
||
856 | ba516b61 | Thomas Schöpping | shell->inputdata.lineend = 0;
|
857 | e545e620 | Thomas Schöpping | size_t nul_start = 0;
|
858 | size_t nul_end = 0;
|
||
859 | // search line for a NUL byte
|
||
860 | while (nul_start < shell->linesize) {
|
||
861 | if (shell->line[nul_start] == '\0') { |
||
862 | nul_end = nul_start + 1;
|
||
863 | // keep searcjing for a byte that is not NUL
|
||
864 | while (nul_end < shell->linesize) {
|
||
865 | if (shell->line[nul_end] != '\0') { |
||
866 | // an intermediate NUL sequence was found
|
||
867 | memset(&(shell->line[nul_start]), ' ', nul_end - nul_start);
|
||
868 | ba516b61 | Thomas Schöpping | shell->inputdata.lineend = nul_end + 1;
|
869 | e545e620 | Thomas Schöpping | break;
|
870 | } else {
|
||
871 | ++nul_end; |
||
872 | } |
||
873 | } |
||
874 | nul_start = nul_end + 1;
|
||
875 | } else {
|
||
876 | ba516b61 | Thomas Schöpping | ++shell->inputdata.lineend; |
877 | e545e620 | Thomas Schöpping | ++nul_start; |
878 | } |
||
879 | } |
||
880 | ba516b61 | Thomas Schöpping | shell->inputdata.cursorpos = shell->inputdata.lineend; |
881 | e545e620 | Thomas Schöpping | // print the line
|
882 | ba516b61 | Thomas Schöpping | shell->inputdata.noinput = _printLine(shell, 0, shell->inputdata.lineend) == 0; |
883 | e545e620 | Thomas Schöpping | break;
|
884 | } |
||
885 | |||
886 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_CLEAR:
|
887 | { |
||
888 | e545e620 | Thomas Schöpping | // clear output
|
889 | ba516b61 | Thomas Schöpping | _moveCursor(shell, shell->inputdata.cursorpos, 0);
|
890 | for (shell->inputdata.cursorpos = 0; shell->inputdata.cursorpos < shell->inputdata.lineend; ++shell->inputdata.cursorpos) { |
||
891 | streamPut(&shell->stream, ' ');
|
||
892 | e545e620 | Thomas Schöpping | } |
893 | ba516b61 | Thomas Schöpping | _moveCursor(shell, shell->inputdata.lineend, 0);
|
894 | shell->inputdata.cursorpos = 0;
|
||
895 | shell->inputdata.lineend = 0;
|
||
896 | shell->inputdata.noinput = true;
|
||
897 | e545e620 | Thomas Schöpping | break;
|
898 | ba516b61 | Thomas Schöpping | } |
899 | e545e620 | Thomas Schöpping | |
900 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_CURSOR2START:
|
901 | { |
||
902 | _moveCursor(shell, shell->inputdata.cursorpos, 0);
|
||
903 | shell->inputdata.cursorpos = 0;
|
||
904 | e545e620 | Thomas Schöpping | break;
|
905 | ba516b61 | Thomas Schöpping | } |
906 | e545e620 | Thomas Schöpping | |
907 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_CURSOR2END:
|
908 | { |
||
909 | _moveCursor(shell, shell->inputdata.cursorpos, shell->inputdata.lineend); |
||
910 | shell->inputdata.cursorpos = shell->inputdata.lineend; |
||
911 | e545e620 | Thomas Schöpping | break;
|
912 | ba516b61 | Thomas Schöpping | } |
913 | e545e620 | Thomas Schöpping | |
914 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_CURSORLEFT:
|
915 | { |
||
916 | _moveCursor(shell, shell->inputdata.cursorpos, shell->inputdata.cursorpos-1);
|
||
917 | --shell->inputdata.cursorpos; |
||
918 | e545e620 | Thomas Schöpping | break;
|
919 | ba516b61 | Thomas Schöpping | } |
920 | e545e620 | Thomas Schöpping | |
921 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_CURSORRIGHT:
|
922 | { |
||
923 | _moveCursor(shell, shell->inputdata.cursorpos, shell->inputdata.cursorpos+1);
|
||
924 | ++shell->inputdata.cursorpos; |
||
925 | e545e620 | Thomas Schöpping | break;
|
926 | ba516b61 | Thomas Schöpping | } |
927 | e545e620 | Thomas Schöpping | |
928 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_EXECUTE:
|
929 | { |
||
930 | streamPut(&shell->stream, '\n');
|
||
931 | // set the number of read bytes and return
|
||
932 | if (!shell->inputdata.noinput) {
|
||
933 | *n = shell->linesize - shell->inputdata.lineend; |
||
934 | e545e620 | Thomas Schöpping | // fill the remainder of the line with NUL bytes
|
935 | ba516b61 | Thomas Schöpping | memset(&(shell->line[shell->inputdata.lineend]), '\0', *n);
|
936 | // reset static variables
|
||
937 | shell->inputdata.noinput = true;
|
||
938 | e545e620 | Thomas Schöpping | } |
939 | ba516b61 | Thomas Schöpping | return AOS_SUCCESS;
|
940 | e545e620 | Thomas Schöpping | break;
|
941 | ba516b61 | Thomas Schöpping | } |
942 | e545e620 | Thomas Schöpping | |
943 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_ESCSTART:
|
944 | { |
||
945 | shell->inputdata.escseq[0] = c;
|
||
946 | ++shell->inputdata.escp; |
||
947 | e545e620 | Thomas Schöpping | break;
|
948 | ba516b61 | Thomas Schöpping | } |
949 | e545e620 | Thomas Schöpping | |
950 | ba516b61 | Thomas Schöpping | case AOS_SHELL_ACTION_NONE:
|
951 | e545e620 | Thomas Schöpping | default:
|
952 | ba516b61 | Thomas Schöpping | { |
953 | e545e620 | Thomas Schöpping | // do nothing (ignore input) and read next byte
|
954 | continue;
|
||
955 | break;
|
||
956 | ba516b61 | Thomas Schöpping | } |
957 | } /* end of switch */
|
||
958 | e545e620 | Thomas Schöpping | |
959 | ba516b61 | Thomas Schöpping | shell->inputdata.lastaction = action; |
960 | e545e620 | Thomas Schöpping | } /* end of while */
|
961 | |||
962 | ba516b61 | Thomas Schöpping | // no more data could be read from the channel
|
963 | return AOS_WARNING;
|
||
964 | e545e620 | Thomas Schöpping | } |
965 | |||
966 | /**
|
||
967 | * @brief Parses the content of the input buffer (line) to separate arguments.
|
||
968 | *
|
||
969 | * @param[in] shell Pointer to the shell object.
|
||
970 | *
|
||
971 | * @return Number of arguments found.
|
||
972 | */
|
||
973 | static size_t _parseArguments(aos_shell_t* shell)
|
||
974 | { |
||
975 | aosDbgCheck(shell != NULL);
|
||
976 | |||
977 | /*
|
||
978 | * States for a very small FSM.
|
||
979 | */
|
||
980 | typedef enum { |
||
981 | START, |
||
982 | SPACE, |
||
983 | TEXT, |
||
984 | END, |
||
985 | } state_t; |
||
986 | |||
987 | // local variables
|
||
988 | state_t state = START; |
||
989 | size_t arg = 0;
|
||
990 | |||
991 | // iterate through the line
|
||
992 | for (char* c = shell->line; c < shell->line + shell->linesize; ++c) { |
||
993 | // terminate at first NUL byte
|
||
994 | if (*c == '\0') { |
||
995 | state = END; |
||
996 | break;
|
||
997 | } |
||
998 | // spaces become NUL bytes
|
||
999 | else if (*c == ' ') { |
||
1000 | *c = '\0';
|
||
1001 | state = SPACE; |
||
1002 | } |
||
1003 | // handle non-NUL bytes
|
||
1004 | else {
|
||
1005 | switch (state) {
|
||
1006 | case START:
|
||
1007 | case SPACE:
|
||
1008 | // ignore too many arguments
|
||
1009 | if (arg < shell->arglistsize) {
|
||
1010 | shell->arglist[arg] = c; |
||
1011 | } |
||
1012 | ++arg; |
||
1013 | break;
|
||
1014 | case TEXT:
|
||
1015 | case END:
|
||
1016 | default:
|
||
1017 | break;
|
||
1018 | } |
||
1019 | state = TEXT; |
||
1020 | } |
||
1021 | } |
||
1022 | |||
1023 | // set all remaining argument pointers to NULL
|
||
1024 | for (size_t a = arg; a < shell->arglistsize; ++a) {
|
||
1025 | shell->arglist[a] = NULL;
|
||
1026 | } |
||
1027 | |||
1028 | return arg;
|
||
1029 | } |
||
1030 | |||
1031 | /**
|
||
1032 | * @brief Initializes a shell object with the specified parameters.
|
||
1033 | *
|
||
1034 | * @param[in] shell Pointer to the shell object.
|
||
1035 | * @param[in] stream I/O stream to use.
|
||
1036 | * @param[in] prompt Prompt line to print (NULL = use default prompt).
|
||
1037 | * @param[in] line Pointer to the input buffer.
|
||
1038 | * @param[in] linesize Size of the input buffer.
|
||
1039 | * @param[in] arglist Pointer to the argument buffer.
|
||
1040 | * @param[in] arglistsize Size of te argument buffer.
|
||
1041 | */
|
||
1042 | ba516b61 | Thomas Schöpping | void aosShellInit(aos_shell_t* shell, event_source_t* oseventsource, const char* prompt, char* line, size_t linesize, char** arglist, size_t arglistsize) |
1043 | e545e620 | Thomas Schöpping | { |
1044 | aosDbgCheck(shell != NULL);
|
||
1045 | ba516b61 | Thomas Schöpping | aosDbgCheck(oseventsource != NULL);
|
1046 | e545e620 | Thomas Schöpping | aosDbgCheck(line != NULL);
|
1047 | aosDbgCheck(arglist != NULL);
|
||
1048 | |||
1049 | // set parameters
|
||
1050 | shell->thread = NULL;
|
||
1051 | chEvtObjectInit(&shell->eventSource); |
||
1052 | ba516b61 | Thomas Schöpping | shell->os.eventSource = oseventsource; |
1053 | aosShellStreamInit(&shell->stream); |
||
1054 | e545e620 | Thomas Schöpping | shell->prompt = prompt; |
1055 | shell->commands = NULL;
|
||
1056 | shell->execstatus.command = NULL;
|
||
1057 | shell->execstatus.retval = 0;
|
||
1058 | shell->line = line; |
||
1059 | shell->linesize = linesize; |
||
1060 | ba516b61 | Thomas Schöpping | shell->inputdata.lastaction = AOS_SHELL_ACTION_NONE; |
1061 | shell->inputdata.escp = 0;
|
||
1062 | memset(shell->inputdata.escseq, '\0', sizeof(shell->inputdata.escseq)*sizeof(shell->inputdata.escseq[0])); |
||
1063 | shell->inputdata.cursorpos = 0;
|
||
1064 | shell->inputdata.lineend = 0;
|
||
1065 | shell->inputdata.noinput = true;
|
||
1066 | e545e620 | Thomas Schöpping | shell->arglist = arglist; |
1067 | shell->arglistsize = arglistsize; |
||
1068 | shell->config = 0x00;
|
||
1069 | |||
1070 | // initialize arrays
|
||
1071 | memset(shell->line, '\0', shell->linesize);
|
||
1072 | for (size_t a = 0; a < shell->arglistsize; ++a) { |
||
1073 | shell->arglist[a] = NULL;
|
||
1074 | } |
||
1075 | |||
1076 | return;
|
||
1077 | } |
||
1078 | |||
1079 | /**
|
||
1080 | ba516b61 | Thomas Schöpping | * @brief Initialize an AosShellStream object.
|
1081 | *
|
||
1082 | * @param[in] stream The AosShellStrem to initialize.
|
||
1083 | */
|
||
1084 | void aosShellStreamInit(AosShellStream* stream)
|
||
1085 | { |
||
1086 | aosDbgCheck(stream != NULL);
|
||
1087 | |||
1088 | stream->vmt = &_streamvmt; |
||
1089 | stream->channel = NULL;
|
||
1090 | |||
1091 | return;
|
||
1092 | } |
||
1093 | |||
1094 | /**
|
||
1095 | * @brief Initialize an AosShellChannel object with the specified parameters.
|
||
1096 | *
|
||
1097 | * @param[in] channel The AosShellChannel to initialize.
|
||
1098 | * @param[in] iochannel An AosIOChannel this AosShellChannel is associated with.
|
||
1099 | */
|
||
1100 | void aosShellChannelInit(AosShellChannel* channel, AosIOChannel* iochannel)
|
||
1101 | { |
||
1102 | aosDbgCheck(channel != NULL);
|
||
1103 | aosDbgCheck(iochannel != NULL && iochannel->asyncchannel != NULL); |
||
1104 | |||
1105 | channel->vmt = &_channelvmt; |
||
1106 | channel->iochannel = iochannel; |
||
1107 | channel->next = NULL;
|
||
1108 | channel->flags = 0;
|
||
1109 | |||
1110 | return;
|
||
1111 | } |
||
1112 | |||
1113 | /**
|
||
1114 | e545e620 | Thomas Schöpping | * @brief Inserts a command to the shells list of commands.
|
1115 | *
|
||
1116 | * @param[in] shell Pointer to the shell object.
|
||
1117 | * @param[in] cmd Pointer to the command to add.
|
||
1118 | *
|
||
1119 | * @return A status value.
|
||
1120 | * @retval AOS_SUCCESS The command was added successfully.
|
||
1121 | * @retval AOS_ERROR Another command with identical name already exists.
|
||
1122 | */
|
||
1123 | aos_status_t aosShellAddCommand(aos_shell_t *shell, aos_shellcommand_t *cmd) |
||
1124 | { |
||
1125 | aosDbgCheck(shell != NULL);
|
||
1126 | aosDbgCheck(cmd != NULL);
|
||
1127 | aosDbgCheck(cmd->name != NULL && strlen(cmd->name) > 0 && strchr(cmd->name, ' ') == NULL && strchr(cmd->name, '\t') == NULL); |
||
1128 | aosDbgCheck(cmd->callback != NULL);
|
||
1129 | aosDbgCheck(cmd->next == NULL);
|
||
1130 | |||
1131 | aos_shellcommand_t* prev = NULL;
|
||
1132 | aos_shellcommand_t** curr = &(shell->commands); |
||
1133 | |||
1134 | // insert the command to the list wrt lexographical order (exception: lower case characters preceed upper their uppercase counterparts)
|
||
1135 | ba516b61 | Thomas Schöpping | while (*curr != NULL) { |
1136 | // iterate through the list as long as the command names are 'smaller'
|
||
1137 | const int cmp = _strccmp((*curr)->name, cmd->name, true, NULL, NULL); |
||
1138 | if (cmp < 0) { |
||
1139 | prev = *curr; |
||
1140 | curr = &((*curr)->next); |
||
1141 | continue;
|
||
1142 | } |
||
1143 | // error if the command already exists
|
||
1144 | else if (cmp == 0) { |
||
1145 | return AOS_ERROR;
|
||
1146 | } |
||
1147 | // insert the command as soon as a 'larger' name was found
|
||
1148 | else /* if (cmpval > 0) */ { |
||
1149 | cmd->next = *curr; |
||
1150 | // special case: the first command is larger
|
||
1151 | if (prev == NULL) { |
||
1152 | shell->commands = cmd; |
||
1153 | } else {
|
||
1154 | prev->next = cmd; |
||
1155 | e545e620 | Thomas Schöpping | } |
1156 | ba516b61 | Thomas Schöpping | return AOS_SUCCESS;
|
1157 | e545e620 | Thomas Schöpping | } |
1158 | } |
||
1159 | ba516b61 | Thomas Schöpping | // the end of the list has been reached
|
1160 | |||
1161 | // append the command
|
||
1162 | *curr = cmd; |
||
1163 | return AOS_SUCCESS;
|
||
1164 | e545e620 | Thomas Schöpping | } |
1165 | |||
1166 | /**
|
||
1167 | * @brief Removes a command from the shells list of commands.
|
||
1168 | *
|
||
1169 | * @param[in] shell Pointer to the shell object.
|
||
1170 | * @param[in] cmd Name of the command to removde.
|
||
1171 | * @param[out] removed Optional pointer to the command that was removed.
|
||
1172 | *
|
||
1173 | * @return A status value.
|
||
1174 | * @retval AOS_SUCCESS The command was removed successfully.
|
||
1175 | * @retval AOS_ERROR The command name was not found.
|
||
1176 | */
|
||
1177 | aos_status_t aosShellRemoveCommand(aos_shell_t *shell, char *cmd, aos_shellcommand_t **removed)
|
||
1178 | { |
||
1179 | aosDbgCheck(shell != NULL);
|
||
1180 | aosDbgCheck(cmd != NULL && strlen(cmd) > 0); |
||
1181 | |||
1182 | aos_shellcommand_t* prev = NULL;
|
||
1183 | aos_shellcommand_t** curr = &(shell->commands); |
||
1184 | |||
1185 | // iterate through the list and seach for the specified command name
|
||
1186 | while (curr != NULL) { |
||
1187 | const int cmpval = strcmp((*curr)->name, cmd); |
||
1188 | // iterate through the list as long as the command names are 'smaller'
|
||
1189 | if (cmpval < 0) { |
||
1190 | prev = *curr; |
||
1191 | curr = &((*curr)->next); |
||
1192 | continue;
|
||
1193 | } |
||
1194 | // remove the command when found
|
||
1195 | else if (cmpval == 0) { |
||
1196 | // special case: the first command matches
|
||
1197 | if (prev == NULL) { |
||
1198 | shell->commands = (*curr)->next; |
||
1199 | } else {
|
||
1200 | prev->next = (*curr)->next; |
||
1201 | } |
||
1202 | (*curr)->next = NULL;
|
||
1203 | // set the optional output argument
|
||
1204 | if (removed != NULL) { |
||
1205 | *removed = *curr; |
||
1206 | } |
||
1207 | return AOS_SUCCESS;
|
||
1208 | } |
||
1209 | // break the loop if the command names are 'larger'
|
||
1210 | else /* if (cmpval > 0) */ { |
||
1211 | break;
|
||
1212 | } |
||
1213 | } |
||
1214 | |||
1215 | // if the command was not found, return an error
|
||
1216 | return AOS_ERROR;
|
||
1217 | } |
||
1218 | |||
1219 | /**
|
||
1220 | ba516b61 | Thomas Schöpping | * @brief Add a channel to a AosShellStream.
|
1221 | *
|
||
1222 | * @param[in] stream The AosShellStream to extend.
|
||
1223 | * @param[in] channel The channel to be added to the stream.
|
||
1224 | */
|
||
1225 | void aosShellStreamAddChannel(AosShellStream* stream, AosShellChannel* channel)
|
||
1226 | { |
||
1227 | aosDbgCheck(stream != NULL);
|
||
1228 | aosDbgCheck(channel != NULL && channel->iochannel != NULL && channel->iochannel->asyncchannel != NULL && channel->next == NULL && (channel->flags & AOS_SHELLCHANNEL_ATTACHED) == 0); |
||
1229 | |||
1230 | // prepend the new channel
|
||
1231 | chSysLock(); |
||
1232 | channel->flags |= AOS_SHELLCHANNEL_ATTACHED; |
||
1233 | channel->next = stream->channel; |
||
1234 | stream->channel = channel; |
||
1235 | chSysUnlock(); |
||
1236 | |||
1237 | return;
|
||
1238 | } |
||
1239 | |||
1240 | /**
|
||
1241 | * @brief Remove a channel from an AosShellStream.
|
||
1242 | *
|
||
1243 | * @param[in] stream The AosShellStream to modify.
|
||
1244 | * @param[in] channel The channel to remove.
|
||
1245 | * @return
|
||
1246 | */
|
||
1247 | aos_status_t aosShellStreamRemoveChannel(AosShellStream* stream, AosShellChannel* channel) |
||
1248 | { |
||
1249 | aosDbgCheck(stream != NULL);
|
||
1250 | aosDbgCheck(channel != NULL && channel->iochannel != NULL && channel->iochannel->asyncchannel != NULL && channel->flags & AOS_SHELLCHANNEL_ATTACHED); |
||
1251 | |||
1252 | // local varibales
|
||
1253 | AosShellChannel* prev = NULL;
|
||
1254 | AosShellChannel* curr = stream->channel; |
||
1255 | |||
1256 | // iterate through the list and search for the specified channel
|
||
1257 | while (curr != NULL) { |
||
1258 | // if the channel was found
|
||
1259 | if (curr == channel) {
|
||
1260 | chSysLock(); |
||
1261 | // special case: the first channel matches (prev is NULL)
|
||
1262 | if (prev == NULL) { |
||
1263 | stream->channel = curr->next; |
||
1264 | } else {
|
||
1265 | prev->next = channel->next; |
||
1266 | } |
||
1267 | curr->next = NULL;
|
||
1268 | curr->flags &= ~AOS_SHELLCHANNEL_ATTACHED; |
||
1269 | chSysUnlock(); |
||
1270 | return AOS_SUCCESS;
|
||
1271 | } |
||
1272 | } |
||
1273 | |||
1274 | // if the channel was not found, return an error
|
||
1275 | return AOS_ERROR;
|
||
1276 | } |
||
1277 | |||
1278 | /**
|
||
1279 | * @brief Enable a AosSheööChannel as input.
|
||
1280 | *
|
||
1281 | * @param[in] channel The channel to enable as input.
|
||
1282 | */
|
||
1283 | void aosShellChannelInputEnable(AosShellChannel* channel)
|
||
1284 | { |
||
1285 | aosDbgCheck(channel != NULL && channel->iochannel != NULL && channel->iochannel->asyncchannel != NULL); |
||
1286 | |||
1287 | chSysLock(); |
||
1288 | channel->listener.wflags |= CHN_INPUT_AVAILABLE; |
||
1289 | channel->flags |= AOS_SHELLCHANNEL_INPUT_ENABLED; |
||
1290 | chSysUnlock(); |
||
1291 | |||
1292 | return;
|
||
1293 | } |
||
1294 | |||
1295 | /**
|
||
1296 | * @brief Disable a AosSheööChannel as input.
|
||
1297 | *
|
||
1298 | * @param[in] channel The channel to disable as input.
|
||
1299 | */
|
||
1300 | void aosShellChannelInputDisable( AosShellChannel* channel)
|
||
1301 | { |
||
1302 | aosDbgCheck(channel != NULL && channel->iochannel != NULL && channel->iochannel->asyncchannel != NULL); |
||
1303 | |||
1304 | chSysLock(); |
||
1305 | channel->listener.wflags &= ~CHN_INPUT_AVAILABLE; |
||
1306 | channel->flags &= ~AOS_SHELLCHANNEL_INPUT_ENABLED; |
||
1307 | chSysUnlock(); |
||
1308 | |||
1309 | return;
|
||
1310 | } |
||
1311 | |||
1312 | /**
|
||
1313 | * @brief Enable a AosSheööChannel as output.
|
||
1314 | *
|
||
1315 | * @param[in] channel The channel to enable as output.
|
||
1316 | */
|
||
1317 | void aosShellChannelOutputEnable(AosShellChannel* channel)
|
||
1318 | { |
||
1319 | aosDbgCheck(channel != NULL && channel->iochannel != NULL && channel->iochannel->asyncchannel != NULL); |
||
1320 | |||
1321 | channel->flags |= AOS_SHELLCHANNEL_OUTPUT_ENABLED; |
||
1322 | |||
1323 | return;
|
||
1324 | } |
||
1325 | |||
1326 | /**
|
||
1327 | * @brief Disable a AosSheööChannel as output.
|
||
1328 | *
|
||
1329 | * @param[in] channel The channel to disable as output.
|
||
1330 | */
|
||
1331 | void aosShellChannelOutputDisable(AosShellChannel* channel)
|
||
1332 | { |
||
1333 | aosDbgCheck(channel != NULL && channel->iochannel != NULL && channel->iochannel->asyncchannel != NULL); |
||
1334 | |||
1335 | channel->flags &= ~AOS_SHELLCHANNEL_OUTPUT_ENABLED; |
||
1336 | |||
1337 | return;
|
||
1338 | } |
||
1339 | |||
1340 | /**
|
||
1341 | e545e620 | Thomas Schöpping | * @brief Thread main function.
|
1342 | *
|
||
1343 | * @param[in] aosShellThread Name of the function;
|
||
1344 | * @param[in] shell Pointer to the shell object.
|
||
1345 | */
|
||
1346 | THD_FUNCTION(aosShellThread, shell) |
||
1347 | { |
||
1348 | aosDbgCheck(shell != NULL);
|
||
1349 | |||
1350 | // local variables
|
||
1351 | ba516b61 | Thomas Schöpping | eventmask_t eventmask; |
1352 | eventflags_t eventflags; |
||
1353 | AosShellChannel* channel; |
||
1354 | aos_status_t readeval; |
||
1355 | size_t nchars = 0;
|
||
1356 | e545e620 | Thomas Schöpping | size_t nargs = 0;
|
1357 | ba516b61 | Thomas Schöpping | aos_shellcommand_t* cmd; |
1358 | |||
1359 | |||
1360 | // register OS related events
|
||
1361 | chEvtRegisterMask(((aos_shell_t*)shell)->os.eventSource, &(((aos_shell_t*)shell)->os.eventListener), AOS_SHELL_EVENTMASK_OS); |
||
1362 | // register events to all input channels
|
||
1363 | for (channel = ((aos_shell_t*)shell)->stream.channel; channel != NULL; channel = channel->next) { |
||
1364 | chEvtRegisterMaskWithFlags(&(channel->iochannel->asyncchannel->event), &(channel->listener), AOS_SHELL_EVENTMASK_INPUT, channel->listener.wflags); |
||
1365 | } |
||
1366 | e545e620 | Thomas Schöpping | |
1367 | // fire start event
|
||
1368 | chEvtBroadcastFlags(&(((aos_shell_t*)shell)->eventSource), AOS_SHELL_EVTFLAG_START); |
||
1369 | |||
1370 | ba516b61 | Thomas Schöpping | // print the prompt for the first time
|
1371 | _printPrompt((aos_shell_t*)shell); |
||
1372 | |||
1373 | e545e620 | Thomas Schöpping | // enter thread loop
|
1374 | while (!chThdShouldTerminateX()) {
|
||
1375 | ba516b61 | Thomas Schöpping | // wait for event and handle it accordingly
|
1376 | eventmask = chEvtWaitOne(ALL_EVENTS); |
||
1377 | |||
1378 | // handle event
|
||
1379 | switch (eventmask) {
|
||
1380 | |||
1381 | // OS related events
|
||
1382 | case AOS_SHELL_EVENTMASK_OS:
|
||
1383 | { |
||
1384 | eventflags = chEvtGetAndClearFlags(&((aos_shell_t*)shell)->os.eventListener); |
||
1385 | // handle shutdown/restart events
|
||
1386 | if (eventflags & AOS_SYSTEM_EVENTFLAGS_SHUTDOWN) {
|
||
1387 | chThdTerminate(((aos_shell_t*)shell)->thread); |
||
1388 | } else {
|
||
1389 | // print an error message
|
||
1390 | chprintf((BaseSequentialStream*)&((aos_shell_t*)shell)->stream, "\nERROR: unknown OS event received (0x%08X)\n", eventflags);
|
||
1391 | } |
||
1392 | e545e620 | Thomas Schöpping | break;
|
1393 | } |
||
1394 | |||
1395 | ba516b61 | Thomas Schöpping | // input events
|
1396 | case AOS_SHELL_EVENTMASK_INPUT:
|
||
1397 | { |
||
1398 | // check and handle all channels
|
||
1399 | channel = ((aos_shell_t*)shell)->stream.channel; |
||
1400 | while (channel != NULL) { |
||
1401 | eventflags = chEvtGetAndClearFlags(&channel->listener); |
||
1402 | // if there is new input
|
||
1403 | if (eventflags & CHN_INPUT_AVAILABLE) {
|
||
1404 | // if the channel is configured as input
|
||
1405 | if (channel->flags & AOS_SHELLCHANNEL_INPUT_ENABLED) {
|
||
1406 | // read input from channel
|
||
1407 | readeval = _readChannel((aos_shell_t*)shell, channel, &nchars); |
||
1408 | // parse input line to argument list only if the input shall be executed
|
||
1409 | nargs = (readeval == AOS_SUCCESS && nchars > 0) ? _parseArguments((aos_shell_t*)shell) : 0; |
||
1410 | // check number of arguments
|
||
1411 | if (nargs > ((aos_shell_t*)shell)->arglistsize) {
|
||
1412 | // error too many arguments
|
||
1413 | chprintf((BaseSequentialStream*)&((aos_shell_t*)shell)->stream, "\ttoo many arguments\n");
|
||
1414 | } else if (nargs > 0) { |
||
1415 | // search command list for arg[0] and execute callback
|
||
1416 | cmd = ((aos_shell_t*)shell)->commands; |
||
1417 | while (cmd != NULL) { |
||
1418 | if (strcmp(((aos_shell_t*)shell)->arglist[0], cmd->name) == 0) { |
||
1419 | ((aos_shell_t*)shell)->execstatus.command = cmd; |
||
1420 | chEvtBroadcastFlags(&(((aos_shell_t*)shell)->eventSource), AOS_SHELL_EVTFLAG_EXEC); |
||
1421 | ((aos_shell_t*)shell)->execstatus.retval = cmd->callback((BaseSequentialStream*)&((aos_shell_t*)shell)->stream, nargs, ((aos_shell_t*)shell)->arglist); |
||
1422 | chEvtBroadcastFlags(&(((aos_shell_t*)shell)->eventSource), AOS_SHELL_EVTFLAG_DONE); |
||
1423 | // notify if the command was not successful
|
||
1424 | if (((aos_shell_t*)shell)->execstatus.retval != 0) { |
||
1425 | chprintf((BaseSequentialStream*)&((aos_shell_t*)shell)->stream, "command returned exit status %d\n", ((aos_shell_t*)shell)->execstatus.retval);
|
||
1426 | } |
||
1427 | break;
|
||
1428 | } |
||
1429 | cmd = cmd->next; |
||
1430 | } /* end of while */
|
||
1431 | |||
1432 | // if no matching command was found, print an error
|
||
1433 | if (cmd == NULL) { |
||
1434 | chprintf((BaseSequentialStream*)&((aos_shell_t*)shell)->stream, "%s: command not found\n", ((aos_shell_t*)shell)->arglist[0]); |
||
1435 | } |
||
1436 | } |
||
1437 | e545e620 | Thomas Schöpping | |
1438 | ba516b61 | Thomas Schöpping | // rreset some internal variables and eprint a new prompt
|
1439 | if (readeval == AOS_SUCCESS && !chThdShouldTerminateX()) {
|
||
1440 | ((aos_shell_t*)shell)->inputdata.cursorpos = 0;
|
||
1441 | ((aos_shell_t*)shell)->inputdata.lineend = 0;
|
||
1442 | _printPrompt((aos_shell_t*)shell); |
||
1443 | } |
||
1444 | } |
||
1445 | // if the channel is not configured as input
|
||
1446 | else {
|
||
1447 | // read but drop all data
|
||
1448 | uint8_t c; |
||
1449 | while (chnReadTimeout(channel, &c, 1, TIME_IMMEDIATE)) { |
||
1450 | continue;
|
||
1451 | } |
||
1452 | } |
||
1453 | e545e620 | Thomas Schöpping | } |
1454 | ba516b61 | Thomas Schöpping | |
1455 | // iterate to next channel
|
||
1456 | channel = channel->next; |
||
1457 | e545e620 | Thomas Schöpping | } |
1458 | ba516b61 | Thomas Schöpping | break;
|
1459 | e545e620 | Thomas Schöpping | } |
1460 | ba516b61 | Thomas Schöpping | |
1461 | // other events
|
||
1462 | default:
|
||
1463 | { |
||
1464 | // print an error message
|
||
1465 | chprintf((BaseSequentialStream*)&((aos_shell_t*)shell)->stream, "\nERROR: unknown event received (0x%08X)\n", eventmask);
|
||
1466 | break;
|
||
1467 | e545e620 | Thomas Schöpping | } |
1468 | |||
1469 | ba516b61 | Thomas Schöpping | } /* end of switch */
|
1470 | |||
1471 | } /* end of while */
|
||
1472 | e545e620 | Thomas Schöpping | |
1473 | // fire event and exit the thread
|
||
1474 | chSysLock(); |
||
1475 | chEvtBroadcastFlagsI(&(((aos_shell_t*)shell)->eventSource), AOS_SHELL_EVTFLAG_EXIT); |
||
1476 | chThdExitS(MSG_OK); |
||
1477 | // no chSysUnlock() required since the thread has been terminated an all waiting threads have been woken up
|
||
1478 | } |
||
1479 | ba516b61 | Thomas Schöpping | |
1480 | #endif /* AMIROOS_CFG_SHELL_ENABLE == true */ |