41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
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/*****************************************************************************
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ExeLst()
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This function executes a less-than-sign (<) command.
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n< Iterate n times
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*****************************************************************************/
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#include "zport.h" /* define portability identifiers */
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#include "tecoc.h" /* define general identifiers */
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#include "defext.h" /* define external global variables */
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#include "deferr.h" /* define identifiers for error messages */
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DEFAULT ExeLst() /* execute a < command */
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{
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DBGFEN(1,"ExeLst",NULL);
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if (++LStTop >= LPS_SIZE) { /* if loop stack is full */
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ErrMsg(ERR_PDO); /* push-down list overflow */
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DBGFEX(1,DbgFNm,"FAILURE");
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return FAILURE;
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}
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if (EStTop == EStBot) { /* if no numeric argument */
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NArgmt = INFINITE; /* make it an infinite loop */
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} else {
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if (GetNmA() == FAILURE) { /* get numeric argmument */
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DBGFEX(1,DbgFNm,"FAILURE");
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return FAILURE;
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}
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if (NArgmt <= 0) { /* if null loop */
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if (FlowEL()== FAILURE) { /* flow to end of loop */
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DBGFEX(1,DbgFNm,"FAILURE");
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return FAILURE;
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}
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CmdMod = '\0'; /* clear modifiers flags */
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DBGFEX(1,DbgFNm,"SUCCESS");
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return SUCCESS;
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}
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}
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LStack[LStTop].LIndex = NArgmt; /* store loop index */
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LStack[LStTop].LAddr = CBfPtr; /* store loop start */
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CmdMod = '\0'; /* clear modifiers flags */
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DBGFEX(1,DbgFNm,"SUCCESS");
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return SUCCESS;
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}
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