changed code to allow an empty label when QSE_SED_STRICT is not set
added qse_sed_stop() and qse_sed_isstop()
This commit is contained in:
parent
7de8b649ef
commit
8f9011bc1d
@ -29,6 +29,25 @@
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#include <qse/cmn/stdio.h>
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#include <qse/cmn/main.h>
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#if defined(_WIN32)
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# include <windows.h>
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# include <tchar.h>
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# include <process.h>
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#elif defined(__OS2__)
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# define INCL_DOSPROCESS
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# define INCL_DOSEXCEPTIONS
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# define INCL_ERRORS
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# include <os2.h>
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# include <signal.h>
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#elif defined(__DOS__)
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# include <dos.h>
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# include <signal.h>
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#else
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# include <unistd.h>
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# include <errno.h>
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# include <signal.h>
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#endif
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static const qse_char_t* g_script_file = QSE_NULL;
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static qse_char_t* g_script = QSE_NULL;
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static qse_char_t* g_output_file = QSE_NULL;
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@ -36,6 +55,7 @@ static int g_infile_pos = 0;
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static int g_option = 0;
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static int g_separate = 0;
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static qse_ulong_t g_memlimit = 0;
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static qse_sed_t* g_sed = QSE_NULL;
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#if defined(QSE_BUILD_DEBUG)
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#include <stdlib.h>
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@ -93,7 +113,7 @@ static void print_usage (QSE_FILE* out, int argc, qse_char_t* argv[])
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qse_fprintf (out, QSE_T(" -r use the extended regular expression\n"));
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qse_fprintf (out, QSE_T(" -R enable non-standard extensions to the regular expression\n"));
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qse_fprintf (out, QSE_T(" -s processes input files separately\n"));
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qse_fprintf (out, QSE_T(" -a perform strict address check\n"));
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qse_fprintf (out, QSE_T(" -a perform strict address and label check\n"));
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qse_fprintf (out, QSE_T(" -w allow address format of start~step\n"));
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qse_fprintf (out, QSE_T(" -x allow text on the same line as c, a, i\n"));
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qse_fprintf (out, QSE_T(" -y ensure a newline at text end\n"));
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@ -289,6 +309,126 @@ void print_exec_error (qse_sed_t* sed)
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}
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}
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#if defined(_WIN32)
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static BOOL WINAPI stop_run (DWORD ctrl_type)
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{
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if (ctrl_type == CTRL_C_EVENT ||
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ctrl_type == CTRL_CLOSE_EVENT)
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{
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qse_sed_stop (g_sed);
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return TRUE;
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}
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return FALSE;
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}
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#elif defined(__OS2__)
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static ULONG _System stop_run (
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PEXCEPTIONREPORTRECORD p1,
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PEXCEPTIONREGISTRATIONRECORD p2,
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PCONTEXTRECORD p3,
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PVOID pv)
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{
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if (p1->ExceptionNum == XCPT_SIGNAL)
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{
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if (p1->ExceptionInfo[0] == XCPT_SIGNAL_INTR ||
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p1->ExceptionInfo[0] == XCPT_SIGNAL_KILLPROC ||
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p1->ExceptionInfo[0] == XCPT_SIGNAL_BREAK)
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{
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APIRET rc;
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qse_sed_stop (g_sed);
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rc = DosAcknowledgeSignalException (p1->ExceptionInfo[0]);
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return (rc != NO_ERROR)? 1: XCPT_CONTINUE_EXECUTION;
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}
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}
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return XCPT_CONTINUE_SEARCH; /* exception not resolved */
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}
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#elif defined(__DOS__)
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static void setsignal (int sig, void(*handler)(int))
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{
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signal (sig, handler);
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}
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static void stop_run (int sig)
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{
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qse_sed_stop (g_sed);
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}
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#else
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static int setsignal (int sig, void(*handler)(int), int restart)
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{
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struct sigaction sa_int;
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sa_int.sa_handler = handler;
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sigemptyset (&sa_int.sa_mask);
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sa_int.sa_flags = 0;
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if (restart)
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{
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#ifdef SA_RESTART
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sa_int.sa_flags |= SA_RESTART;
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#endif
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}
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else
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{
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#ifdef SA_INTERRUPT
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sa_int.sa_flags |= SA_INTERRUPT;
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#endif
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}
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return sigaction (sig, &sa_int, NULL);
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}
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static void stop_run (int sig)
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{
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int e = errno;
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qse_sed_stop (g_sed);
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errno = e;
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}
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#endif
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#if defined(__OS2__)
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static EXCEPTIONREGISTRATIONRECORD os2_excrr = { 0 };
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#endif
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static void set_intr_run (void)
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{
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#if defined(_WIN32)
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SetConsoleCtrlHandler (stop_run, TRUE);
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#elif defined(__OS2__)
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APIRET rc;
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os2_excrr.ExceptionHandler = (ERR)stop_run;
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rc = DosSetExceptionHandler (&os2_excrr);
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/*if (rc != NO_ERROR)...*/
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#elif defined(__DOS__)
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setsignal (SIGINT, stop_run);
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#else
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/*setsignal (SIGINT, stop_run, 1); TO BE MORE COMPATIBLE WITH WIN32*/
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setsignal (SIGINT, stop_run, 0);
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#endif
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}
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static void unset_intr_run (void)
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{
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#if defined(_WIN32)
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SetConsoleCtrlHandler (stop_run, FALSE);
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#elif defined(__OS2__)
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APIRET rc;
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rc = DosUnsetExceptionHandler (&os2_excrr);
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/*if (rc != NO_ERROR) ...*/
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#elif defined(__DOS__)
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setsignal (SIGINT, SIG_DFL);
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#else
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setsignal (SIGINT, SIG_DFL, 1);
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#endif
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}
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int sed_main (int argc, qse_char_t* argv[])
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{
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qse_mmgr_t* mmgr = QSE_NULL;
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@ -402,6 +542,7 @@ int sed_main (int argc, qse_char_t* argv[])
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print_exec_error (sed);
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goto oops;
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}
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if (qse_sed_isstop (sed)) break;
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g_infile_pos++;
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}
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@ -446,8 +587,12 @@ int sed_main (int argc, qse_char_t* argv[])
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QSE_NULL: g_output_file;
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}
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g_sed = sed;
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set_intr_run ();
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xx = qse_sed_execstd (sed, in, (g_output_file? &out: QSE_NULL));
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if (in) QSE_MMGR_FREE (qse_sed_getmmgr(sed), in);
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unset_intr_run ();
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g_sed = QSE_NULL;
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if (xx <= -1)
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{
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@ -1,5 +1,5 @@
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/*
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* $Id: Awk.hpp 516 2011-07-23 09:03:48Z hyunghwan.chung $
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* $Id: Awk.hpp 570 2011-09-20 04:40:45Z hyunghwan.chung $
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*
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Copyright 2006-2011 Chung, Hyung-Hwan.
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This file is part of QSE.
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@ -743,7 +743,7 @@ public:
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operator rtx_t* () const;
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void stop () const;
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bool pendingStop () const;
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bool isStop () const;
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errnum_t getErrorNumber () const;
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loc_t getErrorLocation () const;
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@ -1,5 +1,5 @@
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/*
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* $Id: awk.h 568 2011-09-17 15:41:26Z hyunghwan.chung $
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* $Id: awk.h 570 2011-09-20 04:40:45Z hyunghwan.chung $
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*
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Copyright 2006-2011 Chung, Hyung-Hwan.
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This file is part of QSE.
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@ -1639,10 +1639,10 @@ void qse_awk_stopall (
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);
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/**
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* The qse_awk_pendingstop() function tests if qse_awk_rtx_stop() has been
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* The qse_awk_rtx_isstop() function tests if qse_awk_rtx_stop() has been
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* called.
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*/
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qse_bool_t qse_awk_rtx_pendingstop (
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qse_bool_t qse_awk_rtx_isstop (
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qse_awk_rtx_t* rtx /**< runtime context */
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);
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@ -1,5 +1,5 @@
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/*
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* $Id: sed.h 569 2011-09-19 06:51:02Z hyunghwan.chung $
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* $Id: sed.h 570 2011-09-20 04:40:45Z hyunghwan.chung $
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*
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Copyright 2006-2011 Chung, Hyung-Hwan.
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This file is part of QSE.
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@ -138,7 +138,7 @@ enum qse_sed_option_t
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QSE_SED_KEEPTBS = (1 << 1), /**< keep an trailing backslash */
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QSE_SED_ENSURENL = (1 << 2), /**< ensure NL at the text end */
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QSE_SED_QUIET = (1 << 3), /**< do not print pattern space */
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QSE_SED_STRICT = (1 << 4), /**< do strict address check */
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QSE_SED_STRICT = (1 << 4), /**< do strict address and label check */
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QSE_SED_STARTSTEP = (1 << 5), /**< allow start~step */
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QSE_SED_ZEROA1 = (1 << 6), /**< allow 0,/regex/ */
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QSE_SED_SAMELINE = (1 << 7), /**< allow text on the same line as c, a, i */
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@ -366,6 +366,21 @@ int qse_sed_exec (
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qse_sed_io_fun_t outf /**< stream writer */
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);
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/**
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* The qse_sed_stop() function breaks running loop in qse_sed_exec().
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* It doesn't affect blocking calls in stream handlers.
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*/
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void qse_sed_stop (
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qse_sed_t* sed /**< stream editor */
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);
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/**
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* The qse_sed_isstop() functions tests if qse_sed_stop() is called.
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*/
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int qse_sed_isstop (
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qse_sed_t* sed /**< stream editor */
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);
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/**
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* The qse_sed_getlformatter() function gets the text formatter for the 'l'
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* command.
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@ -1,5 +1,5 @@
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/*
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* $Id: Awk.cpp 556 2011-08-31 15:43:46Z hyunghwan.chung $
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* $Id: Awk.cpp 570 2011-09-20 04:40:45Z hyunghwan.chung $
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*
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Copyright 2006-2011 Chung, Hyung-Hwan.
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This file is part of QSE.
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@ -859,10 +859,10 @@ void Awk::Run::stop () const
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qse_awk_rtx_stop (this->rtx);
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}
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bool Awk::Run::pendingStop () const
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bool Awk::Run::isStop () const
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{
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QSE_ASSERT (this->rtx != QSE_NULL);
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return qse_awk_rtx_pendingstop (this->rtx)? true: false;
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return qse_awk_rtx_isstop (this->rtx)? true: false;
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}
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Awk::errnum_t Awk::Run::getErrorNumber () const
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@ -1,5 +1,5 @@
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/*
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* $Id: run.c 556 2011-08-31 15:43:46Z hyunghwan.chung $
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* $Id: run.c 570 2011-09-20 04:40:45Z hyunghwan.chung $
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*
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Copyright 2006-2011 Chung, Hyung-Hwan.
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This file is part of QSE.
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@ -747,7 +747,7 @@ void qse_awk_rtx_stop (qse_awk_rtx_t* rtx)
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rtx->exit_level = EXIT_ABORT;
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}
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qse_bool_t qse_awk_rtx_pendingstop (qse_awk_rtx_t* rtx)
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qse_bool_t qse_awk_rtx_isstop (qse_awk_rtx_t* rtx)
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{
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return (rtx->exit_level == EXIT_ABORT || rtx->awk->stopall);
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}
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@ -6719,7 +6719,7 @@ qse_char_t* qse_awk_rtx_format (
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for (i = 0; i < fmt_len; i++)
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{
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qse_long_t width = -1, prec = -1;
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qse_bool_t minus = QSE_FALSE;
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int minus = 0;
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if (QSE_STR_LEN(fbu) == 0)
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{
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@ -6733,7 +6733,7 @@ qse_char_t* qse_awk_rtx_format (
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fmt[i] == QSE_T('0') || fmt[i] == QSE_T('+') ||
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fmt[i] == QSE_T('-')))
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{
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if (fmt[i] == QSE_T('-')) minus = QSE_TRUE;
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if (fmt[i] == QSE_T('-')) minus = 1;
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FMT_CHAR (fmt[i]); i++;
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}
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@ -1,5 +1,5 @@
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/*
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* $Id: sed.c 569 2011-09-19 06:51:02Z hyunghwan.chung $
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* $Id: sed.c 570 2011-09-20 04:40:45Z hyunghwan.chung $
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*
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Copyright 2006-2011 Chung, Hyung-Hwan.
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This file is part of QSE.
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@ -102,7 +102,7 @@ int qse_sed_init (qse_sed_t* sed, qse_mmgr_t* mmgr)
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qse_map_mancbs(QSE_MAP_MANCBS_INLINE_KEY_COPIER)
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);
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if (qse_str_init (&sed->e.txt.appended, mmgr, 256) <= -1) goto oops_5;
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if (qse_str_init (&sed->e.txt.append, mmgr, 256) <= -1) goto oops_5;
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if (qse_str_init (&sed->e.txt.hold, mmgr, 256) <= -1) goto oops_6;
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if (qse_str_init (&sed->e.txt.subst, mmgr, 256) <= -1) goto oops_7;
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@ -116,7 +116,7 @@ int qse_sed_init (qse_sed_t* sed, qse_mmgr_t* mmgr)
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oops_7:
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qse_str_fini (&sed->e.txt.hold);
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oops_6:
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qse_str_fini (&sed->e.txt.appended);
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qse_str_fini (&sed->e.txt.append);
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oops_5:
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qse_map_fini (&sed->tmp.labs);
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oops_3:
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@ -134,7 +134,7 @@ void qse_sed_fini (qse_sed_t* sed)
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qse_str_fini (&sed->e.txt.subst);
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qse_str_fini (&sed->e.txt.hold);
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qse_str_fini (&sed->e.txt.appended);
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qse_str_fini (&sed->e.txt.append);
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qse_map_fini (&sed->tmp.labs);
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qse_str_fini (&sed->tmp.lab);
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@ -342,9 +342,7 @@ static int matchtre (
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c == QSE_T(';') || IS_LINTERM(c) || \
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c == QSE_T('{') || c == QSE_T('}'))
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/* check if c can compose a label */
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#define IS_LABCHAR(c) \
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(QSE_ISALNUM(c) || c == QSE_T('.') || \
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c == QSE_T('-') || c == QSE_T('_'))
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#define IS_LABCHAR(c) (!IS_CMDTERM(c) && !IS_WSPACE(c))
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#define CURSC(sed) ((sed)->src.cc)
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#define NXTSC(sed) getnextsc(sed)
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@ -821,12 +819,18 @@ static int get_label (qse_sed_t* sed, qse_sed_cmd_t* cmd)
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if (!IS_LABCHAR(c))
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{
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/* label name is empty */
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if (sed->option & QSE_SED_STRICT)
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{
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SETERR0 (sed, QSE_SED_ELABEM, &sed->src.loc);
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return -1;
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}
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/* empty label. noop command. don't register anything */
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qse_str_clear (&sed->tmp.lab);
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}
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else
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{
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qse_str_clear (&sed->tmp.lab);
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do
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{
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if (qse_str_ccat (&sed->tmp.lab, c) == (qse_size_t)-1)
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@ -861,6 +865,8 @@ static int get_label (qse_sed_t* sed, qse_sed_cmd_t* cmd)
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return -1;
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}
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}
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while (IS_SPACE(c)) c = NXTSC (sed);
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if (IS_CMDTERM(c))
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@ -1748,7 +1754,7 @@ static int read_file (
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for (i = 0; i < n; i++)
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{
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if (qse_str_ccat (&sed->e.txt.appended, buf[i]) == (qse_size_t)-1)
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if (qse_str_ccat (&sed->e.txt.append, buf[i]) == (qse_size_t)-1)
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{
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sed->e.in.fun (
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sed, QSE_SED_IO_CLOSE,
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@ -1763,7 +1769,7 @@ static int read_file (
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}
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else
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{
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if (qse_str_ncat (&sed->e.txt.appended, buf, n) == (qse_size_t)-1)
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if (qse_str_ncat (&sed->e.txt.append, buf, n) == (qse_size_t)-1)
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{
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sed->e.in.fun (
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sed, QSE_SED_IO_CLOSE,
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@ -2585,7 +2591,7 @@ static qse_sed_cmd_t* exec_cmd (qse_sed_t* sed, qse_sed_cmd_t* cmd)
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case QSE_SED_CMD_APPEND:
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if (qse_str_ncat (
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&sed->e.txt.appended,
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&sed->e.txt.append,
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cmd->u.text.ptr,
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cmd->u.text.len) == (qse_size_t)-1)
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{
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@ -3024,15 +3030,15 @@ static int emit_output (qse_sed_t* sed, int skipline)
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if (n <= -1) return -1;
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}
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/* write text appended by a and r */
|
||||
/* write text append by a and r */
|
||||
n = write_str (
|
||||
sed,
|
||||
QSE_STR_PTR(&sed->e.txt.appended),
|
||||
QSE_STR_LEN(&sed->e.txt.appended)
|
||||
QSE_STR_PTR(&sed->e.txt.append),
|
||||
QSE_STR_LEN(&sed->e.txt.append)
|
||||
);
|
||||
if (n <= -1) return -1;
|
||||
|
||||
qse_str_clear (&sed->e.txt.appended);
|
||||
qse_str_clear (&sed->e.txt.append);
|
||||
|
||||
/* flush the output stream in case it's not flushed
|
||||
* in write functions */
|
||||
@ -3067,10 +3073,11 @@ int qse_sed_exec (qse_sed_t* sed, qse_sed_io_fun_t inf, qse_sed_io_fun_t outf)
|
||||
#endif
|
||||
};
|
||||
|
||||
sed->e.stopreq = 0;
|
||||
sed->e.last_rex = QSE_NULL;
|
||||
|
||||
sed->e.subst_done = 0;
|
||||
qse_str_clear (&sed->e.txt.appended);
|
||||
qse_str_clear (&sed->e.txt.append);
|
||||
qse_str_clear (&sed->e.txt.subst);
|
||||
qse_str_clear (&sed->e.txt.hold);
|
||||
if (qse_str_ccat (&sed->e.txt.hold, QSE_T('\n')) == (qse_size_t)-1)
|
||||
@ -3144,7 +3151,7 @@ int qse_sed_exec (qse_sed_t* sed, qse_sed_io_fun_t inf, qse_sed_io_fun_t outf)
|
||||
goto done;
|
||||
}
|
||||
|
||||
while (1)
|
||||
while (!sed->e.stopreq)
|
||||
{
|
||||
n = read_line (sed, 0);
|
||||
if (n <= -1) { ret = -1; goto done; }
|
||||
@ -3152,6 +3159,10 @@ int qse_sed_exec (qse_sed_t* sed, qse_sed_io_fun_t inf, qse_sed_io_fun_t outf)
|
||||
|
||||
if (sed->cmd.fb.len > 0)
|
||||
{
|
||||
/* the first command block contains at least 1 command
|
||||
* to execute. an empty script like ' ' has no commands,
|
||||
* so this block is skipped. */
|
||||
|
||||
qse_sed_cmd_t* c, * j;
|
||||
|
||||
again:
|
||||
@ -3177,6 +3188,7 @@ int qse_sed_exec (qse_sed_t* sed, qse_sed_io_fun_t inf, qse_sed_io_fun_t outf)
|
||||
if (emit_output (sed, 0) <= -1) ret = -1;
|
||||
goto done;
|
||||
}
|
||||
if (sed->e.stopreq) goto done;
|
||||
if (j == &sed->cmd.again) goto again;
|
||||
|
||||
/* go to the next command */
|
||||
@ -3198,6 +3210,16 @@ done3:
|
||||
return ret;
|
||||
}
|
||||
|
||||
void qse_sed_stop (qse_sed_t* sed)
|
||||
{
|
||||
sed->e.stopreq = 1;
|
||||
}
|
||||
|
||||
int qse_sed_isstop (qse_sed_t* sed)
|
||||
{
|
||||
return sed->e.stopreq;
|
||||
}
|
||||
|
||||
qse_sed_lformatter_t qse_sed_getlformatter (qse_sed_t* sed)
|
||||
{
|
||||
return sed->lformatter;
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/*
|
||||
* $Id: sed.h 568 2011-09-17 15:41:26Z hyunghwan.chung $
|
||||
* $Id: sed.h 570 2011-09-20 04:40:45Z hyunghwan.chung $
|
||||
*
|
||||
Copyright 2006-2011 Chung, Hyung-Hwan.
|
||||
This file is part of QSE.
|
||||
@ -261,7 +261,7 @@ struct qse_sed_t
|
||||
/** text buffers */
|
||||
struct
|
||||
{
|
||||
qse_str_t appended;
|
||||
qse_str_t append;
|
||||
qse_str_t hold; /* hold space */
|
||||
qse_str_t subst;
|
||||
} txt;
|
||||
@ -270,6 +270,9 @@ struct qse_sed_t
|
||||
* since the last read on the input stream. */
|
||||
int subst_done;
|
||||
void* last_rex;
|
||||
|
||||
/** stop requested */
|
||||
int stopreq;
|
||||
} e;
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user