Fix handling of one-liner fields.

[ccan] / tools / doc_extract.c

diff --git a/tools/doc_extract.c b/tools/doc_extract.c
index a40e3b1ad0a0ebb1809ecd93fa7a95e8a41c62f7..0a5752c1db2d725094c99400bc84ab8a3c37afe3 100644 (file)
--- a/tools/doc_extract.c
+++ b/tools/doc_extract.c
@@ -51,7 +51,7 @@ static bool is_blank(const char *line)
        return line && line[strspn(line, " \t\n")] == '\0';
 }
 
-static bool is_section(const char *line)
+static bool is_section(const char *line, bool maybe_one_liner)
 {
        unsigned int len;
 
@@ -59,21 +59,29 @@ static bool is_section(const char *line)
        if (len == 0)
                return false;
 
+       if (line[len] != ':')
+               return false;
+
+       /* If it can be a one-liner, a space is sufficient.*/
+       if (maybe_one_liner && (line[len+1] == ' ' || line[len+1] == '\t'))
+               return true;
+
        return line[len] == ':' && is_blank(line+len+1);
 }
 
 
 static bool end_section(const char *line)
 {
-       return !line || is_section(line);
+       return !line || is_section(line, true);
 }
 
-static unsigned int find_section(char **lines, const char *name)
+static unsigned int find_section(char **lines, const char *name,
+                                bool maybe_one_liner)
 {
        unsigned int i;
 
        for (i = 0; lines[i]; i++) {
-               if (!is_section(lines[i]))
+               if (!is_section(lines[i], maybe_one_liner))
                        continue;
                if (strncasecmp(lines[i], name, strlen(name)) != 0)
                        continue;
@@ -104,12 +112,17 @@ int main(int argc, char *argv[])
                if (streq(type, "author")
                    || streq(type, "maintainer")
                    || streq(type, "licence")) {
-                       line = find_section(lines, type);
+                       line = find_section(lines, type, true);
                        if (lines[line]) {
-                               if (!lines[line+1])
-                                       errx(1, "Malformed %s, end of file",
-                                            type);
-                               puts(lines[line+1]);
+                               const char *p = strchr(lines[line], ':') + 1;
+                               p += strspn(p, " \t\n");
+                               if (p[0] == '\0') {
+                                       /* Must be on next line. */
+                                       if (end_section(lines[line+1]))
+                                               errx(1, "Malformed %s", type);
+                                       puts(lines[line+1]);
+                               } else
+                                       puts(p);
                        }
                } else if (streq(type, "summary")) {
                        /* Summary comes after - on first line. */
@@ -128,7 +141,7 @@ int main(int argc, char *argv[])
                        while (!end_section(lines[line]))
                                puts(lines[line++]);
                } else if (streq(type, "example")) {
-                       line = find_section(lines, type);
+                       line = find_section(lines, type, false);
                        if (lines[line]) {
                                unsigned int strip;
                                line++;