157692Sbostic /*- 257692Sbostic * Copyright (c) 1992 The Regents of the University of California. 357692Sbostic * All rights reserved. 457692Sbostic * 557692Sbostic * This code is derived from software contributed to Berkeley by 657692Sbostic * Rodney Ruddock of the University of Guelph. 757692Sbostic * 857692Sbostic * %sccs.include.redist.c% 957692Sbostic */ 1057692Sbostic 1157692Sbostic #ifndef lint 12*57710Sbostic static char sccsid[] = "@(#)l.c 5.2 (Berkeley) 01/23/93"; 1357692Sbostic #endif /* not lint */ 1457692Sbostic 15*57710Sbostic #include <sys/types.h> 16*57710Sbostic 17*57710Sbostic #include <db.h> 18*57710Sbostic #include <regex.h> 19*57710Sbostic #include <setjmp.h> 20*57710Sbostic #include <stdio.h> 21*57710Sbostic #include <string.h> 22*57710Sbostic 2357692Sbostic #include "ed.h" 24*57710Sbostic #include "extern.h" 2557692Sbostic 2657692Sbostic /* 2757692Sbostic * This is the list command. It's not wrapped in with n and p because 2857692Sbostic * of the unambiguous printing needed. 2957692Sbostic */ 3057692Sbostic void 3157692Sbostic l(inputt, errnum) 32*57710Sbostic FILE *inputt; 33*57710Sbostic int *errnum; 3457692Sbostic { 35*57710Sbostic int l_cnt, l_len = 1; 3657692Sbostic 37*57710Sbostic if (start_default && End_default) 38*57710Sbostic start = End = current; 39*57710Sbostic else 40*57710Sbostic if (start_default) 41*57710Sbostic start = End; 4257692Sbostic 43*57710Sbostic if (start == NULL) { 44*57710Sbostic strcpy(help_msg, "bad address"); 45*57710Sbostic *errnum = -1; 46*57710Sbostic return; 47*57710Sbostic } 48*57710Sbostic start_default = End_default = 0; 4957692Sbostic 50*57710Sbostic if (rol(inputt, errnum)) /* For "command-suffix pairs". */ 51*57710Sbostic return; 5257692Sbostic 53*57710Sbostic current = start; 54*57710Sbostic for (;;) { 55*57710Sbostic /* 56*57710Sbostic * Print out the line character-by-character and split the 57*57710Sbostic * line when line length is at line_length. 58*57710Sbostic */ 59*57710Sbostic if (sigint_flag) 60*57710Sbostic SIGINT_ACTION; 61*57710Sbostic if (current == NULL) 62*57710Sbostic break; 63*57710Sbostic get_line(current->handle, current->len); 64*57710Sbostic for (l_cnt = 0; l_cnt < current->len; l_cnt++, l_len += 2) { 65*57710Sbostic /* Check if line needs to be broken first. */ 66*57710Sbostic if ((l_len) % line_length == 0) 67*57710Sbostic putchar('\n'); 68*57710Sbostic else switch (text[l_cnt]) { 69*57710Sbostic case '\b': /* backspace (cntl-H) */ 70*57710Sbostic fwrite("\\b", sizeof(char), 2, stdout); 71*57710Sbostic break; 72*57710Sbostic case '\t': /* horizontal tab */ 73*57710Sbostic fwrite("\\t", sizeof(char), 2, stdout); 74*57710Sbostic break; 75*57710Sbostic case '\n': /* newline (not that there is one). */ 76*57710Sbostic fwrite("\\n", sizeof(char), 2, stdout); 77*57710Sbostic break; 78*57710Sbostic case '\v': /* vertical tab */ 79*57710Sbostic fwrite("\\v", sizeof(char), 2, stdout); 80*57710Sbostic break; 81*57710Sbostic case '\f': /* form feed */ 82*57710Sbostic fwrite("\\f", sizeof(char), 2, stdout); 83*57710Sbostic break; 84*57710Sbostic case '\r': /* return */ 85*57710Sbostic fwrite("\\r", sizeof(char), 2, stdout); 86*57710Sbostic break; 87*57710Sbostic default: 88*57710Sbostic if ((text[l_cnt] < 32) || 89*57710Sbostic (text[l_cnt] > 126)) { 90*57710Sbostic putchar('\\'); 91*57710Sbostic putchar(text[l_cnt] / 64 + '0'); 92*57710Sbostic putchar(text[l_cnt] / 8 + '0'); 93*57710Sbostic putchar(text[l_cnt] % 8 + '0'); 94*57710Sbostic l_len += 2; 95*57710Sbostic } else if (text[l_cnt] == '\\') 96*57710Sbostic fwrite("\\\\", sizeof(char), 2, stdout); 97*57710Sbostic else { 98*57710Sbostic l_len--; 99*57710Sbostic putchar(text[l_cnt]); 100*57710Sbostic } 101*57710Sbostic break; 102*57710Sbostic } 103*57710Sbostic } 104*57710Sbostic l_len = 1; 105*57710Sbostic putchar('\n'); 106*57710Sbostic if (current == End) 107*57710Sbostic break; 108*57710Sbostic current = current->below; 109*57710Sbostic } 110*57710Sbostic *errnum = 1; 111*57710Sbostic } 112