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Cleanup handling of colons in variable substitutions.

Browse Source 
Patch:		7.126

Submitted by:	Max Okumoto <okumoto@ucsd.edu>
This commit is contained in:
Hartmut Brandt 2005-03-18 16:52:46 +00:00
parent 3eafe746ab
commit cedc4e46c2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=143816
1 changed files with 41 additions and 50 deletions
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91
usr.bin/make/var.c
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@ -1239,7 +1239,6 @@ ParseModifier(const char input[], const char tstr[],
VarParser *vp, size_t *lengthPtr, Boolean *freePtr)
{
char *value;
const char *cp;
size_t used;
value = VarExpand(v, vp);
@ -1267,11 +1266,11 @@ ParseModifier(const char input[], const char tstr[],
break;
default:
if (tstr[1] == endc || tstr[1] == ':') {
char termc;
Buffer *buf;
switch (*tstr) {
switch (tstr[0]) {
case 'L':
{
const char *cp;
Buffer *buf;
buf = Buf_Init(MAKE_BSIZE);
for (cp = value; *cp; cp++)
Buf_AddByte(buf, (Byte)tolower(*cp));
@ -1279,25 +1278,25 @@ ParseModifier(const char input[], const char tstr[],
newStr = (char *)Buf_GetAll(buf, (size_t *)NULL);
Buf_Destroy(buf, FALSE);
cp = tstr + 1;
termc = *cp;
tstr += (tstr[1] == ':') ? 2 : 1;
break;
}
case 'O':
newStr = VarSortWords(value, SortIncreasing);
cp = tstr + 1;
termc = *cp;
tstr += (tstr[1] == ':') ? 2 : 1;
break;
case 'Q':
newStr = Var_Quote(value);
cp = tstr + 1;
termc = *cp;
tstr += (tstr[1] == ':') ? 2 : 1;
break;
case 'T':
newStr = VarModify(value, VarTail, (void *)NULL);
cp = tstr + 1;
termc = *cp;
tstr += (tstr[1] == ':') ? 2 : 1;
break;
case 'U':
{
const char *cp;
Buffer *buf;
buf = Buf_Init(MAKE_BSIZE);
for (cp = value; *cp; cp++)
Buf_AddByte(buf, (Byte)toupper(*cp));
@ -1305,26 +1304,24 @@ ParseModifier(const char input[], const char tstr[],
newStr = (char *)Buf_GetAll(buf, (size_t *)NULL);
Buf_Destroy(buf, FALSE);
cp = tstr + 1;
termc = *cp;
tstr += (tstr[1] == ':') ? 2 : 1;
break;
}
case 'H':
newStr = VarModify(value, VarHead, (void *)NULL);
cp = tstr + 1;
termc = *cp;
tstr += (tstr[1] == ':') ? 2 : 1;
break;
case 'E':
newStr = VarModify(value, VarSuffix, (void *)NULL);
cp = tstr + 1;
termc = *cp;
tstr += (tstr[1] == ':') ? 2 : 1;
break;
case 'R':
newStr = VarModify(value, VarRoot, (void *)NULL);
cp = tstr + 1;
termc = *cp;
tstr += (tstr[1] == ':') ? 2 : 1;
break;
default:
{
const char *cp;
#ifdef SYSVVARSUB
/*
* This can either be a bogus modifier or a
@ -1392,41 +1389,37 @@ ParseModifier(const char input[], const char tstr[],
* the whole string. Note the pattern
* is anchored at the end.
*/
termc = *--cp;
--cp;
delim = '\0';
newStr = VarModify(value, VarSYSVMatch, &pattern);
free(pattern.lhs);
free(pattern.rhs);
termc = endc;
tstr = (endc == ':') ? (cp + 1) : cp;
} else
#endif
{
Error("Unknown modifier '%c'\n", *tstr);
for (cp = tstr + 1;
*cp != ':' && *cp != endc && *cp != '\0';
cp++)
continue;
termc = *cp;
for (cp = tstr + 1; *cp != '\0'; cp++) {
if (*cp == ':' && *cp == endc) {
break;
}
}
tstr = (*cp == ':') ? (cp + 1) : cp;
newStr = var_Error;
}
}
break;
}
if (termc == '\0') {
Error("Unclosed variable specification for %s",
v->name);
}
tstr = (termc == ':') ? (cp + 1) : cp;
} else {
char termc;
#ifdef SUNSHCMD
if ((tstr[0] == 's') &&
(tstr[1] == 'h') &&
(tstr[2] == endc || tstr[2] == ':')) {
const char *error;
Buffer *buf;
const char *error;
Buffer *buf;
buf = Cmd_Exec(value, &error);
newStr = Buf_GetAll(buf, NULL);
@ -1434,11 +1427,11 @@ ParseModifier(const char input[], const char tstr[],
if (error)
Error(error, value);
cp = tstr + 2;
termc = *cp;
tstr = (tstr[2] == ':') ? (tstr + 2 + 1) : tstr + 2;
} else
#endif
{
const char *cp;
#ifdef SYSVVARSUB
/*
* This can either be a bogus modifier or a
@ -1506,31 +1499,29 @@ ParseModifier(const char input[], const char tstr[],
* the whole string. Note the pattern
* is anchored at the end.
*/
termc = *--cp;
--cp;
delim = '\0';
newStr = VarModify(value, VarSYSVMatch, &pattern);
free(pattern.lhs);
free(pattern.rhs);
termc = endc;
tstr = (endc == ':') ? (cp + 1) : cp;
} else
#endif
{
Error("Unknown modifier '%c'\n", *tstr);
for (cp = tstr + 1;
*cp != ':' && *cp != endc && *cp != '\0';
cp++)
continue;
termc = *cp;
for (cp = tstr + 1; *cp != '\0'; cp++) {
if (*cp == ':' || *cp == endc) {
break;
}
}
newStr = var_Error;
tstr = (*cp == ':') ? (cp + 1) : cp;
}
}
if (termc == '\0') {
Error("Unclosed variable specification for %s",
v->name);
}
tstr = (termc == ':') ? (cp + 1) : cp;
}
break;
}