ccanlint: use strreg for section extraction.

[ccan] / tools / doc_extract-core.c

diff --git a/tools/doc_extract-core.c b/tools/doc_extract-core.c
index 07d31c77c01f15e85cbc3cebda601b050b916c5f..aa0a26d829197ef351a8643527fddb9ca6dd768a 100644 (file)
--- a/tools/doc_extract-core.c
+++ b/tools/doc_extract-core.c
@@ -11,6 +11,7 @@
 #include <ctype.h>
 #include <ccan/talloc/talloc.h>
 #include <ccan/str/str.h>
+#include <ccan/str_talloc/str_talloc.h>
 #include "doc_extract.h"
 #include "tools.h"
 
@@ -50,28 +51,17 @@ static bool is_blank(const char *line)
        return line && line[strspn(line, " \t\n")] == '\0';
 }
 
-static bool is_section(const char *line, bool one_liner)
+static char *is_section(const void *ctx, const char *line, char **value)
 {
-       unsigned int len = 0;
+       char *secname;
 
        /* Any number of upper case words separated by spaces, ending in : */
-       for (;;) {
-               if (!isupper(line[len]))
-                       return false;
-               len += strspn(line+len, IDENT_CHARS);
-               if (line[len] == ':')
-                       break;
-
-               if (line[len] != ' ')
-                       return false;
-               len++;
-       }
+       if (!strreg(ctx, line,
+                   "^([A-Z][a-zA-Z0-9_]*( [A-Z][a-zA-Z0-9_]*)*):[ \t\n]*(.*)",
+                   &secname, NULL, value))
+               return NULL;
 
-       /* If it can be a one-liner, a space is sufficient.*/
-       if (one_liner)
-               return (line[len+1] == ' ' || line[len+1] == '\t');
-
-       return line[len] == ':' && is_blank(line+len+1);
+       return secname;
 }
 
 /* Summary line is form '<identifier> - ' (spaces for 'struct foo -') */
@@ -148,6 +138,7 @@ struct list_head *extract_doc_sections(char **rawlines, unsigned int num)
 
        for (i = 0; lines[i]; i++) {
                unsigned funclen;
+               char *type, *extra;
 
                funclen = is_summary_line(lines[i]);
                if (funclen) {
@@ -155,20 +146,15 @@ struct list_head *extract_doc_sections(char **rawlines, unsigned int num)
                        curr = new_section(list, function, "summary");
                        add_line(curr, lines[i] + funclen + 3);
                        curr = new_section(list, function, "description");
-               } else if (is_section(lines[i], false)) {
-                       char *type = talloc_strndup(curr, lines[i],
-                                                   strcspn(lines[i], ":"));
-                       curr = new_section(list, function, type);
-               } else if (is_section(lines[i], true)) {
-                       unsigned int sectlen = strcspn(lines[i], ":");
-                       char *type = talloc_strndup(curr, lines[i], sectlen);
+               } else if ((type = is_section(list, lines[i], &extra)) != NULL){
                        curr = new_section(list, function, type);
-                       add_line(curr, lines[i] + sectlen + 1
-                                + strspn(lines[i] + sectlen + 1, " \t"));
+                       if (!streq(extra, "")) {
+                               add_line(curr, extra);
+                               curr = NULL;
+                       }
                } else {
-                       if (!curr)
-                               continue;
-                       add_line(curr, lines[i]);
+                       if (curr)
+                               add_line(curr, lines[i]);
                }
        }
        talloc_free(lines);