implemented most text based functions:
- byte wise processing and call of the command function - history buffer - auto complete - edit functions (backspace, del, arrow keys, pos1, end)
This commit is contained in:
prozessorkern
parent
799903dcc1
commit
bf7f366cb6
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@ -37,6 +37,7 @@
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#define _SHELLMATTA_H_
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#include <stdint.h>
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#include <stdbool.h>
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/**
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* @brief definition of shellmatta return codes
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@ -46,25 +47,40 @@ typedef enum
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SHELLMATTA_OK = 0u, /**< everything is OK */
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SHELLMATTA_ERROR , /**< error occured */
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SHELLMATTA_CONTINUE , /**< the function is not over */
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SHELLMATTA_USE_FAULT /**< parameter error - wrong usage */
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SHELLMATTA_USE_FAULT , /**< parameter error - wrong usage */
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SHELLMATTA_DUPLICATE /**< duplicate command */
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} shellmatta_retCode_t;
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/**
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* @brief definition of shellmatta insert mode
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*/
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typedef enum
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{
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SHELLMATTA_MODE_INSERT = 0u, /**< insert mode */
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SHELLMATTA_MODE_OVERWRITE , /**< overwrite mode */
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} shellmatta_mode_t;
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/**
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* @brief shellmatta command function definition
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*/
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typedef shellmatta_retCode_t (*shellmatta_cmdFct_t)(int argc, char *argv[]);
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/**
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* @brief shellmatta write function definition
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*/
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typedef shellmatta_retCode_t (*shellmatta_write_t)(const char* data, uint32_t length);
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/**
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* @brief structure of one shellmatta command
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*/
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typedef struct shellmatta_cmd
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{
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char *cmd; /**< command name */
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char *cmdAlias; /**< command alias */
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char *helpText; /**< help text to print in "help" command */
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char *usageText; /**< usage text to print on parameter error */
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shellmatta_cmdFct_t cmdFct; /**< pointer to the cmd callack function */
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struct shellmatta_cmd *next; /**< pointer to next command or NULL */
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char *cmd; /**< command name */
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char *cmdAlias; /**< command alias */
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char *helpText; /**< help text to print in "help" command */
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char *usageText; /**< usage text to print on parameter error */
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shellmatta_cmdFct_t cmdFct; /**< pointer to the cmd callack function */
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struct shellmatta_cmd *next; /**< pointer to next command or NULL */
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} shellmatta_cmd_t;
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/**
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@ -72,17 +88,35 @@ typedef struct shellmatta_cmd
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*/
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typedef struct
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{
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uint8_t *buffer; /**< input buffer */
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uint32_t bufferSize; /**< size of the input buffer */
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uint32_t bufferWritePointer; /**< offset of the current write operation */
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uint32_t bufferReadPointer; /**< offset of the current read operation */
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uint8_t *historyBuffer; /**< buffer to store the last commands */
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uint32_t historyBufferSize; /**< size of the history buffer */
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shellmatta_cmd_t *cmdList; /**< pointer to the first command */
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uint8_t *buffer; /**< input buffer */
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uint32_t bufferSize; /**< size of the input buffer */
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uint32_t inputCount; /**< offset of the current write operation */
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uint32_t cursor; /**< offset where the cursor is at */
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uint8_t *historyBuffer; /**< buffer to store the last commands */
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uint32_t historyBufferSize; /**< size of the history buffer */
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uint32_t historyStart; /**< index of the oldest stored command */
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uint32_t historyEnd; /**< index of the newest stored command */
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uint32_t historyRead; /**< index of the current search */
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bool historyReadUp; /**< flag to show the last history dir */
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uint32_t tabCounter; /**< counts the tabulator key presses */
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uint32_t escapeCounter; /**< counts the characters of an escape seq */
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uint8_t escapeChars[4]; /**< buffer to save the escape characters */
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bool echoEnabled; /**< if true the input is printed */
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bool dirty; /**< dirty flag to show changes */
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const char *prompt; /**< prompt is printed after every command */
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shellmatta_mode_t mode; /**< mode of the shell */
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shellmatta_write_t write; /**< pointer to write function */
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shellmatta_cmd_t *cmdList; /**< pointer to the first command */
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} shellmatta_instance_t;
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void shellmatta_doInit(shellmatta_instance_t *inst, uint8_t *buffer, uint32_t bufferSize, uint8_t *historyBuffer, uint32_t historyBufferSize);
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void shellmatta_addCmd(shellmatta_instance_t *inst, shellmatta_cmd_t *cmd);
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shellmatta_retCode_t shellmatta_doInit( shellmatta_instance_t *inst,
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uint8_t *buffer,
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uint32_t bufferSize,
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uint8_t *historyBuffer,
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uint32_t historyBufferSize,
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const char *prompt,
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shellmatta_write_t writeFct);
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shellmatta_retCode_t shellmatta_addCmd(shellmatta_instance_t *inst, shellmatta_cmd_t *cmd);
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void shellmatta_doTask(shellmatta_instance_t *inst, uint32_t time);
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void shellmatta_processData(shellmatta_instance_t *inst, char *data, uint32_t size);
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void shellmatta_printf(shellmatta_instance_t *inst, const char *fmt, ...);
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771
src/shellmatta.c
771
src/shellmatta.c
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@ -37,6 +37,560 @@
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#include <stdio.h>
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#include <stddef.h>
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#include <string.h>
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#include <stdarg.h>
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#define SHELLMATTA_MIN(a,b) (((a) > (b)) ? (b) : (a))
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#define SHELLMATTA_MAX(a,b) (((a) > (b)) ? (b) : (a))
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static void writeEcho( shellmatta_instance_t *inst,
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const uint8_t *data,
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uint32_t length)
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{
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if(true == inst->echoEnabled)
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{
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inst->write(data, length);
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}
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}
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static void appendHistoryByte(shellmatta_instance_t *inst, uint8_t byte)
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{
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inst->historyEnd ++;
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if(inst->historyEnd >= inst->historyBufferSize)
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{
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inst->historyEnd = 0u;
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}
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inst->historyBuffer[inst->historyEnd] = byte;
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if(inst->historyEnd == inst->historyStart)
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{
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/* move the start pointer to the next termination (0) */
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do
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{
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inst->historyStart ++;
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if(inst->historyStart >= inst->historyBufferSize)
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{
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inst->historyStart = 0u;
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}
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}while(0u != inst->historyBuffer[inst->historyStart]);
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}
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}
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static bool getHistoryByte(shellmatta_instance_t *inst, uint8_t *byte)
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{
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bool ret = false;
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if(inst->historyRead != inst->historyStart)
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{
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*byte = inst->historyBuffer[inst->historyRead];
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if(0u == inst->historyRead)
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{
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inst->historyRead = inst->historyBufferSize;
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}
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inst->historyRead --;
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ret = true;
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}
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return ret;
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}
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static void storeHistoryCmd(shellmatta_instance_t *inst)
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{
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if( (inst->historyBufferSize > inst->inputCount)
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&& (0u != inst->inputCount)
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&& (true == inst->dirty))
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{
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appendHistoryByte(inst, 0u);
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for(uint32_t i = inst->inputCount; i > 0u; i --)
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{
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appendHistoryByte(inst, inst->buffer[i - 1u]);
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}
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}
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inst->dirty = false;
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}
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static bool navigateHistoryCmd(shellmatta_instance_t *inst, int32_t cnt)
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{
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bool ret = true;
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uint32_t tempReadIdx = 0u;
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while((cnt > 0) && (true == ret))
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{
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if(inst->historyRead != inst->historyEnd)
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{
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inst->historyRead ++;
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}
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while(inst->historyRead != inst->historyEnd)
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{
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inst->historyRead ++;
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if(inst->historyRead >= inst->historyBufferSize)
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{
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inst->historyRead = 0u;
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}
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if( (inst->historyRead != inst->historyEnd)
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&& (0u == inst->historyBuffer[inst->historyRead]))
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{
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if(0u == inst->historyRead)
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{
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inst->historyRead = inst->historyBufferSize;
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}
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inst->historyRead --;
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cnt -= 1;
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break;
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}
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}
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if(inst->historyRead == inst->historyEnd)
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{
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ret = false;
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}
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}
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while((cnt < 0) && (true == ret))
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{
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tempReadIdx = inst->historyRead;
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while(inst->historyRead != inst->historyStart)
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{
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if(0u == inst->historyRead)
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{
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inst->historyRead = inst->historyBufferSize;
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}
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inst->historyRead --;
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if( (inst->historyRead != inst->historyStart)
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&& (0u == inst->historyBuffer[inst->historyRead]))
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{
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if(0u == inst->historyRead)
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{
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inst->historyRead = inst->historyBufferSize;
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}
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inst->historyRead --;
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cnt += 1;
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break;
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}
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}
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if(inst->historyRead == inst->historyStart)
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{
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inst->historyRead = tempReadIdx;
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inst->historyReadUp = false;
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ret = false;
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}
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}
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return ret;
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}
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static void restoreHistoryCmd(shellmatta_instance_t *inst)
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{
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uint8_t byte;
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bool ret = true;
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ret = getHistoryByte(inst, &byte);
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while((ret == true) && (byte != 0u))
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{
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inst->buffer[inst->inputCount] = byte;
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inst->inputCount ++;
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inst->cursor ++;
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ret = getHistoryByte(inst, &byte);
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}
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writeEcho(inst, inst->buffer, inst->inputCount);
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navigateHistoryCmd(inst, 1);
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inst->dirty = false;
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}
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static void resetHistoryBuffer(shellmatta_instance_t *inst)
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{
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inst->historyRead = inst->historyEnd;
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inst->historyReadUp = true;
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}
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static void saveCursorPos(shellmatta_instance_t *inst)
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{
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writeEcho(inst, "\e[s", 3u);
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}
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static void restoreCursorPos(shellmatta_instance_t *inst)
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{
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writeEcho(inst, "\e[u", 3u);
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}
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static void eraseLine(shellmatta_instance_t *inst)
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{
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writeEcho(inst, "\e[K", 3u);
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}
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static void rewindCursor(shellmatta_instance_t *inst, uint32_t length)
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{
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uint8_t terminalCmd[16];
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size_t size;
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length = SHELLMATTA_MIN (length, inst->cursor);
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if(length > 0u)
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{
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size = snprintf(terminalCmd, sizeof(terminalCmd), "\e[%uD", length);
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writeEcho(inst, terminalCmd, size);
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inst->cursor -= length;
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}
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}
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static void forwardCursor(shellmatta_instance_t *inst, uint32_t length)
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{
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uint8_t terminalCmd[16];
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size_t size;
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length = SHELLMATTA_MAX (length,
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(inst->inputCount - inst->cursor));
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if (length > 0u)
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{
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size = snprintf(terminalCmd, sizeof(terminalCmd), "\e[%uC", length);
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writeEcho(inst, terminalCmd, size);
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inst->cursor -= length;
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}
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}
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static void insertChars(shellmatta_instance_t *inst,
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uint8_t *data,
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uint32_t length)
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{
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/* check if we have to move chars in the buffer */
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if( (inst->cursor != inst->inputCount)
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&& (SHELLMATTA_MODE_INSERT == inst->mode))
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{
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/* move the existing chars */
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for ( uint32_t i = inst->inputCount;
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i > inst->cursor;
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i --)
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{
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inst->buffer[i + length - 1] = inst->buffer[i - 1];
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}
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/* store and print the new chars */
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memcpy(&(inst->buffer[inst->cursor]), data, length);
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writeEcho(inst, data, length);
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/* print the other chars and restore the cursor to this position */
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eraseLine(inst);
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saveCursorPos(inst);
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writeEcho( inst,
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&(inst->buffer[inst->cursor + length]),
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inst->inputCount - inst->cursor);
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restoreCursorPos(inst);
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}
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/* just overwrite/append the chars */
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else
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{
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memcpy(&(inst->buffer[inst->cursor]), data, length);
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writeEcho(inst, data, length);
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}
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inst->inputCount += length;
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inst->cursor += length;
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}
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static void removeChars(shellmatta_instance_t *inst,
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uint32_t length,
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bool backspace)
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{
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length = SHELLMATTA_MIN (length, inst->cursor);
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if(0u != length)
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{
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if(true == backspace)
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{
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rewindCursor(inst, length);
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}
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/* delete the char at the cursor position */
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for ( uint32_t i = inst->cursor;
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i < (inst->inputCount - length);
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i++)
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{
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inst->buffer[i] = inst->buffer[i + length];
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}
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eraseLine(inst);
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saveCursorPos(inst);
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writeEcho( inst,
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&(inst->buffer[inst->cursor]),
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(inst->inputCount - inst->cursor - length));
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restoreCursorPos(inst);
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inst->inputCount -= length;
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}
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}
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static void clearInput(shellmatta_instance_t *inst)
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{
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rewindCursor(inst, inst->cursor);
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eraseLine(inst);
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inst->inputCount = 0u;
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inst->dirty = false;
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}
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static shellmatta_retCode_t processArrowKeys(shellmatta_instance_t *inst)
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{
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shellmatta_retCode_t ret = SHELLMATTA_USE_FAULT;
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if ('[' == inst->escapeChars[0])
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{
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ret = SHELLMATTA_OK;
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switch (inst->escapeChars[1])
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{
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case 'A': /* arrow up */
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storeHistoryCmd(inst);
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if(false == inst->historyReadUp)
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{
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navigateHistoryCmd(inst, -1);
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}
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inst->historyReadUp = true;
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clearInput(inst);
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restoreHistoryCmd(inst);
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navigateHistoryCmd(inst, -1);
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break;
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case 'B': /* arrow down */
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if((inst->historyRead != inst->historyEnd))
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{
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storeHistoryCmd(inst);
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if(true == inst->historyReadUp)
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{
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navigateHistoryCmd(inst, 1);
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}
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inst->historyReadUp = false;
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navigateHistoryCmd(inst, 1);
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clearInput(inst);
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restoreHistoryCmd(inst);
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}
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break;
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case 'C': /* arrow right */
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forwardCursor(inst, 1u);
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break;
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case 'D': /* arrow left */
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rewindCursor(inst, 1u);
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break;
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default:
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/** ignore unknown escape */
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ret = SHELLMATTA_USE_FAULT;
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break;
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}
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}
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return ret;
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}
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void handleEscapeSequence(shellmatta_instance_t *inst, uint8_t *data)
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{
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switch (inst->escapeCounter)
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{
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case 1u:
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inst->escapeChars[inst->escapeCounter - 1] = *data;
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inst->escapeCounter ++;
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break;
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case 2u:
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inst->escapeChars[inst->escapeCounter - 1] = *data;
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if(SHELLMATTA_OK == processArrowKeys(inst))
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{
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inst->escapeCounter = 0u;
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}
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else if ( (0x4fu == inst->escapeChars[0])
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&& (0x46u == inst->escapeChars[1]))
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{
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forwardCursor(inst, inst->inputCount - inst->cursor);
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inst->escapeCounter = 0u;
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}
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else if(0u == (0x40u & *data))
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{
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inst->escapeCounter ++;
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}
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else
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{
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inst->escapeCounter = 0u;
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}
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break;
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case 3u:
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inst->escapeChars[inst->escapeCounter - 1] = *data;
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if( (0x5bu == inst->escapeChars[0])
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&& (0x33u == inst->escapeChars[1])
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&& (0x7eu == inst->escapeChars[2]))
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{
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removeChars(inst, 1u, false);
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inst->escapeCounter = 0u;
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}
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/* pos1 */
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else if ( (0x5bu == inst->escapeChars[0])
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&& (0x31u == inst->escapeChars[1])
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&& (0x7eu == inst->escapeChars[2]))
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{
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rewindCursor(inst, inst->cursor);
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inst->escapeCounter = 0u;
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}
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else if(0u == (0x40u & *data))
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{
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inst->escapeCounter ++;
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}
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else
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{
|
||||
inst->escapeCounter = 0u;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
inst->escapeCounter = 0u;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void terminateInput(shellmatta_instance_t *inst)
|
||||
{
|
||||
inst->inputCount = 0u;
|
||||
inst->cursor = 0u;
|
||||
shellmatta_printf(inst, "\n\r%s", inst->prompt);
|
||||
}
|
||||
|
||||
static void doAutocomplete(shellmatta_instance_t *inst)
|
||||
{
|
||||
shellmatta_cmd_t *cmd = inst->cmdList;
|
||||
uint8_t *tempCmd = NULL;
|
||||
uint32_t minLen = 0u;
|
||||
uint32_t sizeDiff = 0u;
|
||||
bool exactMatch = true;
|
||||
uint32_t printedLen = 0u;
|
||||
|
||||
inst->tabCounter++;
|
||||
|
||||
/* on douple tab show all matching commands */
|
||||
if (1u < inst->tabCounter)
|
||||
{
|
||||
inst->tabCounter = 0u;
|
||||
|
||||
while (NULL != cmd)
|
||||
{
|
||||
/* check if command matches the input */
|
||||
if( (strlen(cmd->cmd) > inst->cursor)
|
||||
&& (0u == memcmp(cmd->cmd, inst->buffer, inst->cursor)))
|
||||
{
|
||||
/* add newline on first find */
|
||||
if(0u == printedLen)
|
||||
{
|
||||
saveCursorPos(inst);
|
||||
inst->write("\n\r", 2u);
|
||||
}
|
||||
inst->write(cmd->cmd, strlen(cmd->cmd));
|
||||
printedLen += strlen(cmd->cmd);
|
||||
inst->write(" ", 4u);
|
||||
printedLen += 4u;
|
||||
}
|
||||
/* check if command matches the input */
|
||||
if( (strlen(cmd->cmdAlias) > inst->cursor)
|
||||
&& (0u == memcmp(cmd->cmdAlias, inst->buffer, inst->cursor)))
|
||||
{
|
||||
/* add newline on first find */
|
||||
if(0u == printedLen)
|
||||
{
|
||||
saveCursorPos(inst);
|
||||
inst->write("\n\r", 2u);
|
||||
}
|
||||
inst->write(cmd->cmdAlias, strlen(cmd->cmdAlias));
|
||||
printedLen += strlen(cmd->cmdAlias);
|
||||
inst->write(" ", 4u);
|
||||
printedLen += 4u;
|
||||
}
|
||||
cmd = cmd->next;
|
||||
}
|
||||
/* print input again if a commands was found */
|
||||
if(printedLen > 0u)
|
||||
{
|
||||
writeEcho(inst, "\n\r", 2u);
|
||||
writeEcho(inst, inst->prompt, strlen(inst->prompt));
|
||||
writeEcho(inst, inst->buffer, inst->inputCount);
|
||||
restoreCursorPos(inst);
|
||||
}
|
||||
}
|
||||
/* on single tab autocomplete as far as possible */
|
||||
else if(0u != inst->cursor)
|
||||
{
|
||||
/* loop through all registered commands */
|
||||
while (NULL != cmd)
|
||||
{
|
||||
/* check if command matches the input */
|
||||
if( (strlen(cmd->cmd) > inst->cursor)
|
||||
&& (0u == memcmp(cmd->cmd, inst->buffer, inst->cursor)))
|
||||
{
|
||||
/* store first match */
|
||||
if(NULL == tempCmd)
|
||||
{
|
||||
tempCmd = cmd->cmd;
|
||||
minLen = strlen(cmd->cmd);
|
||||
}
|
||||
/* find common part of the matches */
|
||||
else
|
||||
{
|
||||
exactMatch = false;
|
||||
minLen = SHELLMATTA_MIN(strlen(cmd->cmd), minLen);
|
||||
for(uint32_t i = 0u; i < minLen; i++)
|
||||
{
|
||||
if(cmd->cmd[i] != tempCmd[i])
|
||||
{
|
||||
minLen = i;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* check if command Alias matches the input */
|
||||
if( (strlen(cmd->cmdAlias) > inst->cursor)
|
||||
&& (0u == memcmp(cmd->cmdAlias, inst->buffer, inst->cursor)))
|
||||
{
|
||||
/* store first match */
|
||||
if(NULL == tempCmd)
|
||||
{
|
||||
tempCmd = cmd->cmdAlias;
|
||||
minLen = strlen(cmd->cmdAlias);
|
||||
}
|
||||
/* find common part of the matches */
|
||||
else
|
||||
{
|
||||
exactMatch = false;
|
||||
minLen = SHELLMATTA_MIN(strlen(cmd->cmdAlias), minLen);
|
||||
for(uint32_t i = 0u; i < minLen; i++)
|
||||
{
|
||||
if(cmd->cmdAlias[i] != tempCmd[i])
|
||||
{
|
||||
minLen = i;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
cmd = cmd->next;
|
||||
}
|
||||
|
||||
/* autocomplete found command */
|
||||
if(NULL != tempCmd)
|
||||
{
|
||||
/* calculate the size of the command to be inserted */
|
||||
sizeDiff = minLen - inst->cursor;
|
||||
|
||||
/* copy the found part into the buffer and display it */
|
||||
insertChars(inst, &(tempCmd[inst->cursor]), sizeDiff);
|
||||
|
||||
/* on exact match there is no need to double Tab to display all */
|
||||
if(true == exactMatch)
|
||||
{
|
||||
inst->tabCounter = 0u;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* nothing to do here */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief initialize the shellmatta terminal and provide all callbacks
|
||||
|
|
@ -47,43 +601,97 @@
|
|||
* NULL in case of no history buffer
|
||||
* @param[in] historyBufferSize size of the history buffer
|
||||
* 0 in case of no history buffer
|
||||
* @param[in] prompt pointer to prompt string - is printed
|
||||
* after each command
|
||||
* @param[in] writeFct function pointer to output function
|
||||
*/
|
||||
void shellmatta_doInit(
|
||||
shellmatta_instance_t *inst,
|
||||
uint8_t *buffer,
|
||||
uint32_t bufferSize,
|
||||
uint8_t *historyBuffer,
|
||||
uint32_t historyBufferSize)
|
||||
shellmatta_retCode_t shellmatta_doInit(
|
||||
shellmatta_instance_t *inst,
|
||||
uint8_t *buffer,
|
||||
uint32_t bufferSize,
|
||||
uint8_t *historyBuffer,
|
||||
uint32_t historyBufferSize,
|
||||
const char *prompt,
|
||||
shellmatta_write_t writeFct)
|
||||
{
|
||||
/** - copy all provided buffers into the shellmatta instance */
|
||||
inst->buffer = buffer;
|
||||
inst->bufferSize = bufferSize;
|
||||
inst->bufferReadPointer = 0u;
|
||||
inst->bufferWritePointer = 0u;
|
||||
inst->cmdList = NULL;
|
||||
inst->historyBuffer = historyBuffer;
|
||||
inst->historyBufferSize = historyBufferSize;
|
||||
inst->buffer = buffer;
|
||||
inst->bufferSize = bufferSize;
|
||||
inst->inputCount = 0u;
|
||||
inst->cursor = 0u;
|
||||
inst->cmdList = NULL;
|
||||
inst->historyBuffer = historyBuffer;
|
||||
inst->historyBufferSize = historyBufferSize;
|
||||
inst->historyStart = 0u;
|
||||
inst->historyEnd = 0u;
|
||||
inst->historyRead = 0u;
|
||||
inst->historyReadUp = true;
|
||||
inst->write = writeFct;
|
||||
inst->prompt = prompt;
|
||||
inst->echoEnabled = true;
|
||||
inst->dirty = false;
|
||||
inst->tabCounter = 0u;
|
||||
inst->escapeCounter = 0u;
|
||||
inst->mode = SHELLMATTA_MODE_INSERT;
|
||||
|
||||
terminateInput(inst);
|
||||
|
||||
return SHELLMATTA_OK;
|
||||
}
|
||||
|
||||
|
||||
void shellmatta_addCmd(shellmatta_instance_t *inst, shellmatta_cmd_t *cmd)
|
||||
/**
|
||||
* @brief adds a command to the command list alphabetically ordered
|
||||
* @param[in] inst pointer to a shellmatta instance
|
||||
* @param[in] cmd pointer to the command to add type #shellmatta_cmd_t
|
||||
*/
|
||||
shellmatta_retCode_t shellmatta_addCmd(shellmatta_instance_t *inst, shellmatta_cmd_t *cmd)
|
||||
{
|
||||
shellmatta_cmd_t *tempCmd = inst->cmdList;
|
||||
shellmatta_cmd_t *tempCmd = inst->cmdList;
|
||||
shellmatta_cmd_t **prevCmd = &inst->cmdList;
|
||||
bool cmdPlaced = false;
|
||||
shellmatta_retCode_t ret = SHELLMATTA_OK;
|
||||
int cmdDiff = 0;
|
||||
int aliasDiff = 0;
|
||||
|
||||
/* register first command as list entry */
|
||||
if (NULL == tempCmd)
|
||||
{
|
||||
inst->cmdList = cmd;
|
||||
cmd->next = NULL;
|
||||
}
|
||||
/* append the new command sorted */
|
||||
else
|
||||
{
|
||||
while (tempCmd->next != NULL)
|
||||
while ((false == cmdPlaced) && (SHELLMATTA_OK == ret))
|
||||
{
|
||||
cmdDiff = strcmp(tempCmd->cmd, cmd->cmd);
|
||||
aliasDiff = strcmp(tempCmd->cmdAlias, cmd->cmdAlias);
|
||||
/* check for a duplicate command */
|
||||
if((0u == cmdDiff) || (0u == aliasDiff))
|
||||
{
|
||||
ret = SHELLMATTA_DUPLICATE;
|
||||
}
|
||||
else if(0 < cmdDiff)
|
||||
{
|
||||
cmd->next = tempCmd;
|
||||
*prevCmd = cmd;
|
||||
cmdPlaced = true;
|
||||
}
|
||||
else if(NULL == tempCmd->next)
|
||||
{
|
||||
tempCmd->next = cmd;
|
||||
cmd->next = NULL;
|
||||
cmdPlaced = true;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* nothing to do */
|
||||
}
|
||||
prevCmd = &tempCmd;
|
||||
tempCmd = tempCmd->next;
|
||||
}
|
||||
tempCmd->next = cmd;
|
||||
cmd->next = NULL;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -92,51 +700,120 @@ void shellmatta_doTask(shellmatta_instance_t *inst, uint32_t time)
|
|||
|
||||
}
|
||||
|
||||
void shellmatta_processData(shellmatta_instance_t *inst, char *data,
|
||||
uint32_t size)
|
||||
/**
|
||||
* @brief processes the passed amount of data
|
||||
* @param[in] inst pointer to a shellmatta instance
|
||||
* @param[in] data pointer to input data to process
|
||||
* @param[in] size length of input data to process
|
||||
*/
|
||||
void shellmatta_processData(shellmatta_instance_t *inst,
|
||||
char *data,
|
||||
uint32_t size)
|
||||
{
|
||||
printf("%c", *data);
|
||||
|
||||
if (0x0A == *data)
|
||||
/* process byte wise */
|
||||
for (uint32_t i = 0u; i < size; i++)
|
||||
{
|
||||
shellmatta_cmd_t *cmd = inst->cmdList;
|
||||
uint8_t cmdExecuted = 0u;
|
||||
inst->buffer[inst->bufferWritePointer] = 0u;
|
||||
|
||||
while (NULL != cmd)
|
||||
/* handle escape sequences */
|
||||
if(inst->escapeCounter != 0u)
|
||||
{
|
||||
if (0 == strcmp(inst->buffer, cmd->cmd))
|
||||
handleEscapeSequence(inst, data);
|
||||
}
|
||||
/* handle return as start of processing the command */
|
||||
else if ('\r' == *data)
|
||||
{
|
||||
shellmatta_cmd_t *cmd = inst->cmdList;
|
||||
uint8_t cmdExecuted = 0u;
|
||||
inst->buffer[inst->inputCount] = 0u;
|
||||
|
||||
/* store the current command and reset the history buffer */
|
||||
inst->dirty = true;
|
||||
storeHistoryCmd(inst);
|
||||
resetHistoryBuffer(inst);
|
||||
|
||||
while (NULL != cmd)
|
||||
{
|
||||
cmdExecuted = 1u;
|
||||
char *blubb[10];
|
||||
blubb[0] = inst->buffer;
|
||||
cmd->cmdFct(1, blubb);
|
||||
cmd = NULL;
|
||||
if ( (0 == strcmp(inst->buffer, cmd->cmd))
|
||||
|| (0 == strcmp(inst->buffer, cmd->cmdAlias)))
|
||||
{
|
||||
inst->write("\n\r", 2u);
|
||||
|
||||
cmdExecuted = 1u;
|
||||
char *blubb[10];
|
||||
blubb[0] = inst->buffer;
|
||||
cmd->cmdFct(1, blubb);
|
||||
cmd = NULL;
|
||||
}
|
||||
else
|
||||
{
|
||||
cmd = cmd->next;
|
||||
}
|
||||
}
|
||||
else
|
||||
|
||||
if ((cmdExecuted == 0u) && (inst->inputCount > 0))
|
||||
{
|
||||
cmd = cmd->next;
|
||||
inst->buffer[inst->inputCount] = '\0';
|
||||
shellmatta_printf( inst,
|
||||
"\n\rCommand: %s not found",
|
||||
inst->buffer);
|
||||
}
|
||||
terminateInput(inst);
|
||||
}
|
||||
/* tabulator key - auto complete */
|
||||
else if('\t' == *data)
|
||||
{
|
||||
inst->dirty = true;
|
||||
doAutocomplete(inst);
|
||||
}
|
||||
/* cancel - terminate current input and print prompt again */
|
||||
else if(3 == *data)
|
||||
{
|
||||
inst->dirty = false;
|
||||
resetHistoryBuffer(inst);
|
||||
terminateInput(inst);
|
||||
}
|
||||
/* backspace */
|
||||
else if('\b' == *data)
|
||||
{
|
||||
inst->dirty = true;
|
||||
removeChars(inst, 1u, true);
|
||||
}
|
||||
/* check for delete key */
|
||||
else if(0x7eu == *data)
|
||||
{
|
||||
inst->dirty = true;
|
||||
removeChars(inst, 1u, false);
|
||||
}
|
||||
/* start of escape sequence */
|
||||
else if('\e' == *data)
|
||||
{
|
||||
inst->escapeCounter = 1u;
|
||||
}
|
||||
else
|
||||
{
|
||||
inst->dirty = true;
|
||||
insertChars(inst, data, 1);
|
||||
}
|
||||
|
||||
if (cmdExecuted == 0u)
|
||||
/* reset tab counter on not a tab */
|
||||
if ('\t' != *data)
|
||||
{
|
||||
printf("failed to find command");
|
||||
inst->tabCounter = 0u;
|
||||
}
|
||||
|
||||
inst->bufferWritePointer = 0u;
|
||||
}
|
||||
else
|
||||
{
|
||||
inst->buffer[inst->bufferWritePointer] = *data;
|
||||
inst->bufferWritePointer++;
|
||||
data ++;
|
||||
}
|
||||
}
|
||||
|
||||
void shellmatta_printf(shellmatta_instance_t *inst, const char *fmt, ...)
|
||||
{
|
||||
/*TODO dummy implementation, shall be replaced by a generic output mechanism */
|
||||
printf(fmt);
|
||||
char outputBuffer[1024u];
|
||||
va_list arg;
|
||||
|
||||
va_start(arg, fmt);
|
||||
int length = vsnprintf(outputBuffer, 1024, fmt, arg);
|
||||
va_end(arg);
|
||||
|
||||
inst->write(outputBuffer, length);
|
||||
}
|
||||
|
||||
void shellmatta_getArg(uint32_t cnt, uint8_t *arg)
|
||||
|
|
|
|||
Loading…
Reference in New Issue