portable documentation

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@269 be3aeb3a-fb24-0410-a615-afba39da0efa

tools/Makefile

@@ -1,10 +1,10 @@
 CFLAGS = -Wall -ggdb
 
-TARGET = amalgamate
-OBJS = amalgamate.o
+TARGETS = amalgamate textfilter
+OBJS = $(addsuffix .o,$(TARGETS))
 
-all: $(TARGET)
+all: $(TARGETS)
 
 clean:
-	$(RM) $(TARGET) $(OBJS)
+	$(RM) $(TARGETS) $(OBJS)
 

tools/textfilter.c

@@ -0,0 +1,114 @@
+#include <stdio.h>
+#include <string.h>
+
+
+static int check_defines(const char **defs, int defcount, char *tdef)
+{
+	int i, len;
+
+	len = strlen(tdef);
+	for (i = 0; i < len; i++)
+		if (tdef[i] == ' ' || tdef[i] == '\r' || tdef[i] == '\n') break;
+	tdef[i] = 0;
+
+	for (i = 0; i < defcount; i++)
+	{
+		if (strcmp(defs[i], tdef) == 0)
+			return 1;
+	}
+
+	return 0;
+}
+
+
+static void do_counters(char *str)
+{
+	static int counters[4] = { 1, 1, 1, 1 };
+	char buff[1024];
+	int counter;
+	char *s = str;
+
+	while ((s = strstr(s, "@@")))
+	{
+		if (s[2] < '0' || s[2] > '3') { s++; continue; }
+
+		counter = s[2] - '0';
+		snprintf(buff, sizeof(buff), "%i%s", counters[counter]++, s + 3);
+		strcpy(s, buff);
+	}
+}
+
+
+int main(int argc, char *argv[])
+{
+	char buff[1024];
+	FILE *fi, *fo;
+	int skip_mode = 0, ifdef_level = 0, line = 0;
+
+	if (argc < 3)
+	{
+		printf("usage:\n%s <file_in> <file_out> [defines...]\n", argv[0]);
+		return 1;
+	}
+
+	fi = fopen(argv[1], "r");
+	if (fi == NULL)
+	{
+		printf("failed to open: %s\n", argv[1]);
+		return 2;
+	}
+
+	fo = fopen(argv[2], "w");
+	if (fo == NULL)
+	{
+		printf("failed to open: %s\n", argv[2]);
+		return 3;
+	}
+
+	for (++line; !feof(fi); line++)
+	{
+		char *fgs;
+
+		fgs = fgets(buff, sizeof(buff), fi);
+		if (fgs == NULL) break;
+
+		if (buff[0] == '#')
+		{
+			/* control char */
+			if (strncmp(buff, "#ifdef ", 7) == 0)
+			{
+				if (!check_defines((void *) &argv[3], argc-3, buff + 7)) skip_mode = 1;
+				ifdef_level++;
+			}
+			else if (strncmp(buff, "#ifndef ", 8) == 0)
+			{
+				if ( check_defines((void *) &argv[3], argc-3, buff + 7)) skip_mode = 1;
+				ifdef_level++;
+			}
+			else if (strncmp(buff, "#endif", 6) == 0)
+			{
+				ifdef_level--;
+				if (ifdef_level == 0) skip_mode = 0;
+				if (ifdef_level < 0)
+				{
+					printf("%i: warning: #endif without #ifdef, ignoring\n", line);
+					ifdef_level = 0;
+				}
+			}
+
+			/* skip line */
+			continue;
+		}
+		if (!skip_mode)
+		{
+			do_counters(buff);
+			fputs(buff, fo);
+		}
+	}
+
+	fclose(fi);
+	fclose(fo);
+
+	return 0;
+}
+