X-Git-Url: https://ocean-lang.org/code/?p=ocean;a=blobdiff_plain;f=csrc%2Fboot-strap%2Fmd2c.c;h=30e5a6994cb88ffd3d0ee052e2364c0126f783c2;hp=71e377179adb2f45c73e4f8a427add82ec425cd8;hb=45da2641b117c266e07e8aa306b92913ea5ab214;hpb=f8480284851202f57fd148cd2cc30502340a8494

diff --git a/csrc/boot-strap/md2c.c b/csrc/boot-strap/md2c.c
index 71e3771..30e5a69 100644
--- a/csrc/boot-strap/md2c.c
+++ b/csrc/boot-strap/md2c.c
@@ -1,17 +1,16 @@
-#line 120 "../mdcode.mdc"
+#line 124 "../mdcode.mdc"
 #include <unistd.h>
 #include <stdlib.h>
 #include <stdio.h>
 
 #include "mdcode.h"
 
-#line 860 "../mdcode.mdc"
+#line 894 "../mdcode.mdc"
 #include <fcntl.h>
 #include <errno.h>
 #include <sys/mman.h>
 #include <string.h>
-
-#line 832 "../mdcode.mdc"
+#line 867 "../mdcode.mdc"
 static void copy_fname(char *name, int space, struct text t)
 {
 	char *sec = t.txt;
@@ -30,8 +29,7 @@ static void copy_fname(char *name, int space, struct text t)
 	strncpy(name, sec, len);
 	name[len] = 0;
 }
-
-#line 867 "../mdcode.mdc"
+#line 901 "../mdcode.mdc"
 static int errs;
 static void pr_err(char *msg)
 {
@@ -39,18 +37,33 @@ static void pr_err(char *msg)
 	fprintf(stderr, "%s\n", msg);
 }
 
+static char *strnchr(char *haystack, int len, char needle)
+{
+	while (len > 0 && *haystack && *haystack != needle) {
+		haystack++;
+		len--;
+	}
+	return len > 0 && *haystack == needle ? haystack : NULL;
+}
+
 int main(int argc, char *argv[])
 {
 	int fd;
 	size_t len;
 	char *file;
+	struct text section = {NULL, 0};
 	struct section *table, *s, *prev;
 
 	errs = 0;
-	if (argc != 2) {
-		fprintf(stderr, "Usage: mdcode file.mdc\n");
+	if (argc != 2 && argc != 3) {
+		fprintf(stderr, "Usage: mdcode file.mdc [section]\n");
 		exit(2);
 	}
+	if (argc == 3) {
+		section.txt = argv[2];
+		section.len = strlen(argv[2]);
+	}
+
 	fd = open(argv[1], O_RDONLY);
 	if (fd < 0) {
 		fprintf(stderr, "mdcode: cannot open %s: %s\n",
@@ -65,14 +78,25 @@ int main(int argc, char *argv[])
 		(code_free(s->code), prev = s, s = s->next, free(prev))) {
 		FILE *fl;
 		char fname[1024];
-		if (strncmp(s->section.txt, "Example:", 8) == 0)
-			continue;
-		if (strncmp(s->section.txt, "File:", 5) != 0) {
-			fprintf(stderr, "Unreferenced section is not a file name: %.*s\n",
+		char *spc = strnchr(s->section.txt, s->section.len, ' ');
+
+		if (spc > s->section.txt && spc[-1] == ':') {
+			if (strncmp(s->section.txt, "File: ", 6) != 0 &&
+			    (section.txt == NULL ||
+			     text_cmp(s->section, section) != 0))
+				/* Ignore this section */
+				continue;
+		} else {
+			fprintf(stderr, "Code in unreferenced section that is not ignored or a file name: %.*s\n",
 				s->section.len, s->section.txt);
 			errs++;
 			continue;
 		}
+		if (section.txt) {
+			if (text_cmp(s->section, section) == 0)
+				code_node_print(stdout, s->code, argv[1]);
+			break;
+		}
 		copy_fname(fname, sizeof(fname), s->section);
 		if (fname[0] == 0) {
 			fprintf(stderr, "Missing file name at:%.*s\n",
@@ -92,6 +116,5 @@ int main(int argc, char *argv[])
 	}
 	exit(!!errs);
 }
-
-#line 128 "../mdcode.mdc"
+#line 132 "../mdcode.mdc"