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Allow comments inside of macro calls that are spread over more than one line

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git-svn-id: svn://svn.cc65.org/cc65/trunk@1141 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2001-12-12 21:45:05 +00:00
parent 5f7ca4b2f4
commit 6b654255ba
1 changed files with 47 additions and 33 deletions
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80
src/cc65/preproc.c
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@ -147,7 +147,7 @@ static void keepch (char c)
{
*mptr++ = c;
}
static void keepstr (const char* S)
@ -160,8 +160,8 @@ static void keepstr (const char* S)
static void Comment (void)
/* Remove a C comment from line. */
static void OldStyleComment (void)
/* Remove an old style C comment from line. */
{
/* Remember the current line number, so we can output better error
* messages if the comment is not terminated in the current file.
@ -176,13 +176,13 @@ static void Comment (void)
while (CurC != '*' || NextC != '/') {
if (CurC == '\0') {
if (NextLine () == 0) {
PPError ("End-of-file reached in comment starting at line %u",
StartingLine);
PPError ("End-of-file reached in comment starting at line %u",
StartingLine);
return;
}
} else {
if (CurC == '/' && NextC == '*') {
PPWarning ("`/*' found inside a comment");
PPWarning ("`/*' found inside a comment");
}
NextChar ();
}
@ -195,6 +195,24 @@ static void Comment (void)
static void NewStyleComment (void)
/* Remove a new style C comment from line. */
{
/* Beware: Because line continuation chars are handled when reading
* lines, we may only skip til the end of the source line, which
* may not be the same as the end of the input line. The end of the
* source line is denoted by a lf (\n) character.
*/
do {
NextChar ();
} while (CurC != '\n' && CurC != '\0');
if (CurC == '\n') {
NextChar ();
}
}
static void SkipBlank (void)
/* Skip blanks and tabs in the input stream. */
{
@ -361,15 +379,15 @@ static int MacroCall (Macro* M)
++ArgCount;
}
/* Check for end of macro param list */
if (CurC == ')') {
NextChar ();
break;
}
/* Check for end of macro param list */
if (CurC == ')') {
NextChar ();
break;
}
/* Start the next param */
ArgStart = B;
NextChar ();
NextChar ();
} else {
/* Comma or right paren inside nested parenthesis */
if (CurC == ')') {
@ -382,25 +400,31 @@ static int MacroCall (Macro* M)
/* Squeeze runs of blanks */
*B++ = ' ';
SkipBlank ();
} else if (CurC == '/' && NextC == '*') {
*B++ = ' ';
OldStyleComment ();
} else if (ANSI == 0 && CurC == '/' && NextC == '/') {
*B++ = ' ';
NewStyleComment ();
} else if (CurC == '\0') {
/* End of line inside macro argument list - read next line */
/* End of line inside macro argument list - read next line */
if (NextLine () == 0) {
return 0;
}
} else {
/* Just copy the character */
/* Just copy the character */
*B++ = CurC;
NextChar ();
NextChar ();
}
}
/* Compare formal argument count with actual */
if (M->ArgCount != ArgCount) {
PPError ("Macro argument count mismatch");
/* Be sure to make enough empty arguments available */
while (ArgCount < M->ArgCount) {
M->ActualArgs [ArgCount++] = "";
}
PPError ("Macro argument count mismatch");
/* Be sure to make enough empty arguments available */
while (ArgCount < M->ArgCount) {
M->ActualArgs [ArgCount++] = "";
}
}
/* Preprocess the line, replacing macro parameters */
@ -570,20 +594,10 @@ static int Pass1 (const char* From, char* To)
mptr = CopyQuotedString (mptr);
} else if (CurC == '/' && NextC == '*') {
keepch (' ');
Comment ();
OldStyleComment ();
} else if (ANSI == 0 && CurC == '/' && NextC == '/') {
keepch (' ');
/* Beware: Because line continuation chars are handled when reading
* lines, we may only skip til the end of the source line, which
* may not be the same as the end of the input line. The end of the
* source line is denoted by a lf (\n) character.
*/
do {
NextChar ();
} while (CurC != '\n' && CurC != '\0');
if (CurC == '\n') {
NextChar ();
}
NewStyleComment ();
} else {
*mptr++ = CurC;
NextChar ();
@ -906,7 +920,7 @@ void Preprocess (void)
case PP_ELSE:
if (IfIndex >= 0) {
if ((IfStack[IfIndex] & IFCOND_ELSE) == 0) {
if ((IfStack[IfIndex] & IFCOND_ELSE) == 0) {
if ((IfStack[IfIndex] & IFCOND_SKIP) == 0) {
Skip = !Skip;
}