From 778338e39c6abf799237b3fd56fe1f20c8d3eaad Mon Sep 17 00:00:00 2001
From: Holden Rohrer <hr@hrhr.dev>
Date: Mon, 30 Mar 2020 14:08:36 -0400
Subject: cmd and typeset framework added
---
badroff.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 60 insertions(+), 2 deletions(-)
diff --git a/badroff.c b/badroff.c
index 592ac7e..8cf8961 100644
--- a/badroff.c
+++ b/badroff.c
@@ -1,5 +1,11 @@
#include <stdio.h>
#include "sb.h"
+#include "buf.h"
+
+typedef enum {
+ false,
+ true
+} bool;
FILE* getfile(int argc, char** argv){
if (argc >= 2)
@@ -9,15 +15,67 @@ FILE* getfile(int argc, char** argv){
}
FILE* in;
+buf* inbuf;
+
+int width;
+bool brk;
+
+
+size_t fillbuf(size_t len){ // returns real len
+ int c;
+ size_t set;
+ for (set = buflen(inbuf); set < len && (c = fgetc(in)) != EOF;set++)
+ inschrbuf(inbuf, c);
+ return set;
+}
+
+size_t nlfill(){
+ size_t line;
+ size_t len = buflen(inbuf);
+ char* str = peekstrbuf(inbuf, 0, len);
+ for (line = 0; line < len; line++)
+ if (str[line] == '\n') return line+1;
+ for (int c = 0; c != '\n' && (c = fgetc(in)) != EOF; line++)
+ inschrbuf(inbuf, c);
+ return line;
+}
+
+void cmd(void){
+ int n = nlfill();
+ popstrbuf(inbuf, n);
+}
+
+char* typeset(void){
+ return popstrbuf(inbuf, nlfill());
+}
+
+char* line(void){
+ size_t sz;
+ if ( (sz = fillbuf(2)) == 0)
+ return "";
+ char* twobytes = peekstrbuf(inbuf, 0, 2); // .., .\n, or ^.?
+ if (sz == 1) return typeset();
+ if (twobytes[0] == '.' && twobytes[1] == '\n') return typeset();
+ if (twobytes[0] == '.') popchrbuf(inbuf);
+ if (twobytes[0] == '.' && twobytes[1] != '.'){
+ cmd();
+ return line();
+ } else {
+ return typeset();
+ }
+}
int main(int argc, char** argv){
int c;
in = getfile(argc, argv);
+ inbuf = newbuf(256);
if (in == NULL){
perror(argv[1]);
return 1;
}
- while ( (c = fgetc(in)) != EOF){
-
+ char* out;
+ while ( (out = line())[0] != '\0'){
+ printf("%s",out);
}
+ fclose(in);
}
--
cgit