dc3edf7a66
Automatic submission by obs-autosubmit OBS-URL: https://build.opensuse.org/request/show/106239 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/btrfsprogs?expand=0&rev=25
459 lines
9.0 KiB
Diff
459 lines
9.0 KiB
Diff
From e1825e850af190793dadf5ca78f36f394bae9e86 Mon Sep 17 00:00:00 2001
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From: Goffredo Baroncelli <kreijack@inwind.it>
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Date: Sat, 16 Jul 2011 10:55:30 +0200
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Subject: [PATCH 10/35] helpextract: tool to extract the info for the help
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from the source.
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It is created the file helpextract.c, which is the source for the tool
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"helpextract". This program extract the info showed in the man page and
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the help command from the sources comments.
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---
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helpextract.c | 435 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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1 files changed, 435 insertions(+), 0 deletions(-)
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create mode 100644 helpextract.c
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diff --git a/helpextract.c b/helpextract.c
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new file mode 100644
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index 0000000..9489ea0
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--- /dev/null
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+++ b/helpextract.c
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@@ -0,0 +1,435 @@
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+#include <stdio.h>
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+#include <errno.h>
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+#include <stdlib.h>
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+#include <string.h>
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+#include <ctype.h>
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+
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+#define PREFIX_MAN "/**** man: "
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+#define PREFIX_TEXT "/**** text: "
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+#define PREFIX_END " ****"
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+#define PREFIX_SKIP " * "
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+
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+#define LINEBUF 1024
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+
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+char **msgs=0;
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+int nmsg=0;
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+
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+static char *xstrdup(char *str){
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+ char *new = strdup(str);
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+ if(!new){
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+ fprintf(stderr,"*** Memory allocation fail ! (xstrdup)\n");
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+ exit(101);
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+ }
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+ return new;
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+}
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+
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+static void *xrealloc(void *ptr, int newsize){
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+ void *new = realloc(ptr, newsize);
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+ if(!new){
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+ fprintf(stderr,"*** Memory allocation fail ! (xrealloc)\n");
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+ exit(101);
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+ }
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+ return new;
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+
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+
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+}
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+
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+static char *xstrip(char *s){
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+
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+ char *last=NULL;
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+ char *first;
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+
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+ while(*s && isspace(*s) ) s++;
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+
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+ first=s;
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+
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+ while(*s){
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+ if(isspace(*s)) last=s;
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+ s++;
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+ }
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+
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+ if(last) *last=0;
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+ return first;
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+
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+
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+}
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+
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+static void addtuple(char *key, char *cmdline, char *short_help,
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+ char *long_help){
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+
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+ msgs = (char**)xrealloc(msgs, sizeof(char *)*(nmsg+1)*4);
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+
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+ key = xstrip(key);
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+
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+ if( !long_help || !strcmp(long_help,"\n"))
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+ long_help = short_help;
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+ else if(!short_help || !strcmp(short_help, "\n"))
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+ short_help = long_help;
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+
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+ msgs[nmsg*4] = key;
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+ msgs[nmsg*4+1] = cmdline;
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+ msgs[nmsg*4+2] = short_help;
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+ msgs[nmsg*4+3] = long_help;
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+ nmsg++;
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+}
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+
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+
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+static int search_in_file(char *nf){
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+ char buf[LINEBUF+1];
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+ FILE *fp;
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+ int status;
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+ char *key=NULL;
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+ char *cmdline=NULL;
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+ char *short_help=NULL;
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+ char *long_help=NULL;
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+
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+ fp = fopen(nf,"r");
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+ if(!fp){
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+ int e=errno;
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+ fprintf(stderr, "*** Cannot open '%s'; error = %d - '%s'\n",
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+ nf, e, strerror(e));
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+ return -1;
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+ }
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+
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+ status = 0;
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+ while(fgets(buf,LINEBUF,fp)){
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+ // printf("status = %d, buf=%s",status, buf);
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+
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+ if(status == 0){
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+ if(!strncmp(buf,PREFIX_MAN, strlen(PREFIX_MAN)) ){
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+ key = xstrdup(buf+strlen(PREFIX_MAN));
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+ status++;
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+ }else if(!strncmp(buf,PREFIX_TEXT,
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+ strlen(PREFIX_TEXT))){
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+ key = xstrdup(buf+strlen(PREFIX_TEXT));
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+ status=5;
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+ }
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+ continue;
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+
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+ }
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+
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+ if( !strncmp(buf,PREFIX_END, strlen(PREFIX_END)) ||
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+ strncmp(buf, PREFIX_SKIP,2)){
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+
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+ addtuple(key, cmdline, short_help, long_help);
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+ key = cmdline = short_help = long_help = 0;
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+ status = 0;
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+
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+ continue;
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+ }
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+ if( status == 2){
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+ if(strlen(buf)>strlen(PREFIX_SKIP))
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+ cmdline = xstrdup(buf+strlen(PREFIX_SKIP));
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+ status++;
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+ continue;
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+ }
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+ if( status == 4){
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+ int len;
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+ int len2;
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+ char *p;
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+
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+ if(strlen(buf)<=strlen(PREFIX_SKIP)){
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+ status++;
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+ continue;
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+ }
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+ p=buf+3;
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+ while(isspace(*p) && *p ) p++;
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+ if(!*p){
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+ status++;
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+ continue;
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+ }
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+
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+ len2 = strlen(buf)-strlen(PREFIX_SKIP);
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+
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+ if(short_help)
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+ len = strlen(short_help);
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+ else
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+ len = 0;
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+ short_help = (char*)xrealloc(short_help, len+len2+1);
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+ strcpy(short_help+len,buf+strlen(PREFIX_SKIP));
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+ continue;
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+ }
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+ if( status == 5){
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+ int len;
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+ int len2 = strlen(buf)-strlen(PREFIX_SKIP);
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+
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+ if(long_help)
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+ len = strlen(long_help);
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+ else
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+ len = 0;
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+ long_help = (char*)xrealloc(long_help, len+len2+1);
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+ strcpy(long_help+len,buf+strlen(PREFIX_SKIP));
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+ continue;
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+ }
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+ if( status == 1 || status == 3 ){
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+ status++;
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+ continue;
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+ }
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+
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+ fprintf(stderr,"*** Internal error: status = %d\n",status);
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+ exit(100);
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+
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+ }
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+
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+ if( status != 0 ){
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+ fprintf(stderr,"*** Parse error: file = '%s', "
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+ "status = %d at the end of file\n",
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+ nf, status);
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+ exit(100);
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+
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+ }
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+
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+ fclose(fp);
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+
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+ return 0;
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+}
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+
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+/* remove all the escape sequence excepet \\ */
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+static char * my_escape(char *src, char *filters[] ){
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+
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+ static char buffer[LINEBUF*5];
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+
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+ int i=0;
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+ while(*src){
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+ int j;
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+ int next_char = *(src+1);
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+ if(*src != '\\'){
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+ buffer[i++]=*src++;
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+ continue;
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+ }
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+ if(!next_char){
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+ buffer[i++]=*src++;
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+ continue;
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+ }
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+ if( !filters ){
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+ src +=2;
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+ continue;
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+ }
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+
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+ j=0;
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+ while(filters[j]){
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+ if(filters[j][0] == next_char ){
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+ strcpy(buffer+i, filters[j]+2);
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+ i+=strlen(filters[j]+2);
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+ break;
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+ }
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+ j++;
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+ }
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+ if(!filters[j]){
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+ char *p=src;
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+ int l=40;
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+ fprintf(stderr,
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+ "Unknow escape sequence '\%c' in [\"",
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+ next_char);
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+ while(*p && l--) fputc(*p++, stderr);
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+ fprintf(stderr, "\"...]\n");
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+ }
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+ src += 2;
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+
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+ }
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+
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+ buffer[i]=0;
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+ return buffer;
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+
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+}
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+
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+static char * escape_c_array(char *src ){
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+ static char *filters[]={
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+
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+ /* remove the all know esc-sequence */
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+
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+ "B ", /* bold */
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+ "b ", /* end bold */
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+ "I ", /* italic */
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+ "i ", /* end italic */
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+ "c ", /* comment */
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+ "P ", /* start paragraph */
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+ "p ", /* indented paragraph */
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+ "h ", /* header */
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+ "d ", /* bold regular */
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+ "e ", /* bold */
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+ "t ", /* indented paragraph */
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+ "w ", /* move the left margin */
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+ "q ", /* move the left margin back */
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+
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+ "\\ \\\\",
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+ "- -",
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+
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+ 0
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+ };
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+
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+ return my_escape(src, filters);
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+}
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+
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+static char *escape_man_page(char *src){
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+ /* from Gnu troff manual */
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+ static char *filters[]={
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+ "B \\fB", /* bold */
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+ "b \\fP", /* end bold */
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+ "I \\fI", /* italic */
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+ "i \\fP", /* end italic */
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+ "c .\\\"", /* comment */
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+ "P .PP", /* start paragraph */
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+ "p .TP", /* indented paragraph */
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+ "h .SH", /* header */
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+ "d .BR", /* bold regular */
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+ "e .B", /* bold */
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+ "t .IP", /* indented paragraph */
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+ "w .RS", /* move the left margin */
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+ "q .RE", /* move the left margin back */
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+
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+ "- \\-", /* escape the minus sign */
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+ "\\ \\",
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+
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+ 0
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+ };
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+
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+ return my_escape(src, filters);
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+}
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+
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+
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+static void dump_c_array(){
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+
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+ int i;
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+
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+ printf("{");
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+ for(i=0; i < nmsg*4 ; i++){
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+ char *c = msgs[i];
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+ int begin;
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+
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+ if(!(i%4) && strncmp(c,"btrfs ",5)){
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+ i+=3;
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+ continue;
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+ }
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+
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+ if(i>0){
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+ putchar(',');
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+ if(!(i%4)) putchar('\n');
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+ }
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+
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+ if(!c){
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+ printf("\n NULL");
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+ continue;
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+ }
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+
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+ c = escape_c_array(c);
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+
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+ begin = 1;
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+ while( *c ){
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+ if(begin)
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+ printf("\n \"");
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+ begin = 0;
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+ if( *c == '\n' ){
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+ printf("\\n\"");
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+ begin = 1;
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+ }else if( *c == '"' ){
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+ printf("\\\"");
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+ }else{
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+ putchar(*c);
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+ }
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+
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+ c++;
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+ }
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+ if(!begin) putchar('"');
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+ }
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+ printf(",\n\n ");
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+ for(i=0; i < 4; i++){
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+ if(i>0) putchar(',');
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+ printf("NULL");
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+ }
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+ printf("\n}\n");
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+
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+}
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+
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+static int my_sort_cmp(const void *p1, const void *p2){
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+ return strcmp(*(char**)p1, *(char **)p2);
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+}
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+
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+static void my_sort(){
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+ qsort(msgs, nmsg, sizeof(char*)*4, my_sort_cmp);
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+}
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+
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+static int find_section(char *key){
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+ int i;
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+ for(i = 0 ; i < nmsg ; i++ )
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+ if(!strcmp( msgs[i*4],key) ) return i;
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+
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+ return -1;
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+}
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+
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+static void dump_man_page(){
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+
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+ int i, fmt;
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+
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+ i = find_section("man btrfs header");
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+ if( i>= 0 ) printf(msgs[i*4+3]);
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+
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+ i = find_section("man btrfs synopsis");
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+ if( i>= 0 ) printf(msgs[i*4+3]);
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+
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+ fmt = find_section("man btrfs synopsis format");
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+ for(i = 0; i < nmsg && fmt>=0; i++ ){
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+ if( strncmp("btrfs ",msgs[i*4], 6) ||
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+ !strcmp("btrfs introduction", msgs[i*4] ) ||
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+ !strcmp("btrfs notes", msgs[i*4] ) )
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+ continue;
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+
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+ printf(msgs[fmt*4+3], escape_man_page(msgs[i*4+1]));
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+ }
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+
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+ i = find_section("btrfs introduction");
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+ if( i>= 0 ) printf(escape_man_page(msgs[i*4+3]));
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+
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+ i = find_section("man btrfs commands");
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+ if( i>= 0 ) printf(msgs[i*4+3]);
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+
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+ fmt = find_section("man btrfs command format");
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+ for(i = 0; i < nmsg && fmt>=0; i++ ){
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+
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+ char big2[LINEBUF*5];
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+ if( strncmp("btrfs ",msgs[i*4], 6) ||
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+ !strcmp("btrfs introduction", msgs[i*4] ) ||
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+ !strcmp("btrfs notes", msgs[i*4] ) )
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+ continue;
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+
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+ strcpy(big2, escape_man_page(msgs[i*4+3]));
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+ printf(msgs[fmt*4+3], escape_man_page(msgs[i*4+1]), big2);
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+
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+ }
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+
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+ i = find_section("man btrfs notes");
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+ if( i>= 0 ) printf(msgs[i*4+3]);
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+
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+ i = find_section("btrfs notes");
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+ if( i>= 0 ) printf(escape_man_page(msgs[i*4+3]));
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+
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+ i = find_section("man btrfs footer");
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+ if( i>= 0 ) printf(msgs[i*4+3]);
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+}
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+
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+static void usage(char *np){
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+ printf("usage: %s --man-page|--c-array <file> [<file> [...]]\n", np);
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+}
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+
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+int main(int argc, char **argv ){
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+
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+ int i;
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+ if( argc < 3 || ( strcmp(argv[1],"--man-page") &&
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+ strcmp(argv[1],"--c-array") )){
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+ usage(argv[0]);
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+ return 0;
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+ }
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+
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+ for(i=2; i < argc ; i++)
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+ search_in_file(argv[i]);
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+
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+ my_sort();
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+
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+ if(!strcmp(argv[1], "--man-page"))
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+ dump_man_page();
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+ else if (!strcmp(argv[1], "--c-array"))
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+ dump_c_array();
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+
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+ return 0;
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+
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+}
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--
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1.7.6.233.gd79bc
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