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docproc: abstract terminating lines at first space 

Cleaner code. Also fixes a bug when F or P directives didn't in fact
have space.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jani Nikula 2016-05-12 16:15:42 +03:00 committed by Jonathan Corbet
parent a48dc45e9c
commit 1dcdad0aac
1 changed files with 21 additions and 13 deletions
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34
scripts/docproc.c
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@ -430,6 +430,21 @@ static void find_all_symbols(char *filename)
}
}
/*
* Terminate s at first space, if any. If there was a space, return pointer to
* the character after that. Otherwise, return pointer to the terminating NUL.
*/
static char *chomp(char *s)
{
while (*s && !isspace(*s))
s++;
if (*s)
*s++ = '\0';
return s;
}
/* Return pointer to directive content, or NULL if not a directive. */
static char *is_directive(char *line)
{
@ -460,27 +475,22 @@ static void parse_file(FILE *infile)
continue;
}
s = p + 1;
switch (*p++) {
case 'E':
while (*s && !isspace(*s)) s++;
*s = '\0';
chomp(p);
externalfunctions(p);
break;
case 'I':
while (*s && !isspace(*s)) s++;
*s = '\0';
chomp(p);
internalfunctions(p);
break;
case 'D':
while (*s && !isspace(*s)) s++;
*s = '\0';
chomp(p);
symbolsonly(p);
break;
case 'F':
/* filename */
while (*s && !isspace(*s)) s++;
*s++ = '\0';
s = chomp(p);
/* function names */
while (isspace(*s))
s++;
@ -488,16 +498,14 @@ static void parse_file(FILE *infile)
break;
case 'P':
/* filename */
while (*s && !isspace(*s)) s++;
*s++ = '\0';
s = chomp(p);
/* DOC: section name */
while (isspace(*s))
s++;
docsection(p, s);
break;
case 'C':
while (*s && !isspace(*s)) s++;
*s = '\0';
chomp(p);
if (findall)
findall(p);
break;