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instant: encode 8bit chars to keep Tcl happy

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This commit is contained in:
Jon Trulson 2018-09-19 13:53:20 -06:00
parent 7712950fb7
commit 23c4c0667d
1 changed files with 49 additions and 14 deletions
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63
cde/programs/dtdocbook/instant/main.c
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@ -374,7 +374,7 @@ static int DefaultOutputString(ClientData clientData,
/* leave room for worst case expansion plus quotes plus null */
pArgv = argv[1];
stringLength = (2 * strlen(pArgv)) + 3;
stringLength = (3 * strlen(pArgv)) + 3;
string = Tcl_Alloc(stringLength);
memset(string, 0, stringLength);
@ -385,24 +385,59 @@ static int DefaultOutputString(ClientData clientData,
* any characters that will throw Tcl for a loop */
*pString++ = '"';
while (*pArgv) {
switch (*pArgv) {
case '{':
case '}':
case '"':
case '\'':
case '[':
case ']':
case '$':
case '\\':
*pString++ = '\\';
}
*pString++ = *pArgv++;
if (*pArgv & 0x80)
{
/* 8-bit data - need to encode since modern Tcl expects
* any "binary" (8-bit) data in strings to be proper UTF-8
* encoded. We aren't doing that (yet), so convert any
* detected 8b characters into a \xNN format.
*
* This code should be unnecessary when we switch to UTF8.
*/
char fmt[16];
snprintf(fmt, 16, "%02x", (int)*pArgv & 0xff);
#if 0
fprintf(stderr, "JET: converted 0x%02x to '%s'\n",
*pArgv, fmt);
#endif
/* copy the 4 bytes into the string */
*pString++ = '\\';
*pString++ = 'x';
*pString++ = fmt[0];
*pString++ = fmt[1];
pArgv++;
}
else
{
switch (*pArgv) {
case '{':
case '}':
case '"':
case '\'':
case '[':
case ']':
case '$':
case '\\':
*pString++ = '\\';
}
*pString++ = *pArgv++;
}
}
*pString++ = '"';
*pString++ = 0;
/* put the string to the output */
retCode = Tcl_VarEval(interpreter, "puts -nonewline ", string, 0);
retCode = Tcl_VarEval(interpreter, "puts -nonewline ", string,
(char *)NULL);
#if 0
/* JET*/
if (retCode != TCL_OK)
{
fprintf(stderr, "JET: retCode = %d, LEN = %d STRING = '%s'\n",
retCode, strlen(string), string);
fprintf(stderr, "\tstring[1] = 0x%02x\n", string[1]);
}
#endif
Tcl_Free(string);
/* and ripple up any error code we got from the "puts" */