1097 lines
20 KiB
C
1097 lines
20 KiB
C
/*
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* Copyright (C) 1984-2023 Mark Nudelman
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Less License, as specified in the README file.
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*
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* For more information, see the README file.
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*/
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/*
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* Handling functions for command line options.
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*
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* Most options are handled by the generic code in option.c.
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* But all string options, and a few non-string options, require
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* special handling specific to the particular option.
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* This special processing is done by the "handling functions" in this file.
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*
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* Each handling function is passed a "type" and, if it is a string
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* option, the string which should be "assigned" to the option.
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* The type may be one of:
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* INIT The option is being initialized from the command line.
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* TOGGLE The option is being changed from within the program.
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* QUERY The setting of the option is merely being queried.
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*/
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#include "less.h"
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#include "option.h"
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extern int nbufs;
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extern int bufspace;
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extern int pr_type;
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extern int plusoption;
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extern int swindow;
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extern int sc_width;
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extern int sc_height;
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extern int secure;
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extern int dohelp;
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extern int is_tty;
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extern char openquote;
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extern char closequote;
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extern char *prproto[];
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extern char *eqproto;
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extern char *hproto;
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extern char *wproto;
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extern char *every_first_cmd;
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extern IFILE curr_ifile;
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extern char version[];
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extern int jump_sline;
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extern long jump_sline_fraction;
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extern int shift_count;
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extern long shift_count_fraction;
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extern char rscroll_char;
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extern int rscroll_attr;
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extern int mousecap;
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extern int wheel_lines;
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extern int less_is_more;
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extern int linenum_width;
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extern int status_col_width;
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extern int use_color;
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extern int want_filesize;
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extern int header_lines;
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extern int header_cols;
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extern int def_search_type;
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extern int chopline;
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extern int tabstops[];
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extern int ntabstops;
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extern int tabdefault;
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extern char intr_char;
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#if LOGFILE
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extern char *namelogfile;
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extern int force_logfile;
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extern int logfile;
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#endif
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#if TAGS
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public char *tagoption = NULL;
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extern char *tags;
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extern char ztags[];
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#endif
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#if LESSTEST
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extern char *ttyin_name;
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#endif /*LESSTEST*/
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#if MSDOS_COMPILER
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extern int nm_fg_color, nm_bg_color;
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extern int bo_fg_color, bo_bg_color;
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extern int ul_fg_color, ul_bg_color;
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extern int so_fg_color, so_bg_color;
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extern int bl_fg_color, bl_bg_color;
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extern int sgr_mode;
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#if MSDOS_COMPILER==WIN32C
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#ifndef COMMON_LVB_UNDERSCORE
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#define COMMON_LVB_UNDERSCORE 0x8000
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#endif
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#endif
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#endif
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#if LOGFILE
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/*
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* Handler for -o option.
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*/
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public void opt_o(int type, char *s)
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{
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PARG parg;
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char *filename;
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if (secure)
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{
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error("log file support is not available", NULL_PARG);
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return;
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}
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switch (type)
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{
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case INIT:
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namelogfile = save(s);
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break;
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case TOGGLE:
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if (ch_getflags() & CH_CANSEEK)
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{
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error("Input is not a pipe", NULL_PARG);
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return;
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}
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if (logfile >= 0)
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{
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error("Log file is already in use", NULL_PARG);
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return;
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}
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s = skipsp(s);
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if (namelogfile != NULL)
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free(namelogfile);
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filename = lglob(s);
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namelogfile = shell_unquote(filename);
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free(filename);
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use_logfile(namelogfile);
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sync_logfile();
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break;
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case QUERY:
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if (logfile < 0)
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error("No log file", NULL_PARG);
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else
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{
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parg.p_string = namelogfile;
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error("Log file \"%s\"", &parg);
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}
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break;
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}
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}
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/*
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* Handler for -O option.
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*/
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public void opt__O(int type, char *s)
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{
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force_logfile = TRUE;
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opt_o(type, s);
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}
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#endif
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/*
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* Handlers for -j option.
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*/
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public void opt_j(int type, char *s)
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{
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PARG parg;
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int len;
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int err;
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switch (type)
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{
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case INIT:
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case TOGGLE:
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if (*s == '.')
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{
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s++;
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jump_sline_fraction = getfraction(&s, "j", &err);
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if (err)
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error("Invalid line fraction", NULL_PARG);
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else
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calc_jump_sline();
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} else
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{
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int sline = getnum(&s, "j", &err);
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if (err)
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error("Invalid line number", NULL_PARG);
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else
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{
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jump_sline = sline;
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jump_sline_fraction = -1;
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}
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}
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break;
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case QUERY:
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if (jump_sline_fraction < 0)
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{
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parg.p_int = jump_sline;
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error("Position target at screen line %d", &parg);
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} else
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{
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char buf[24];
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SNPRINTF1(buf, sizeof(buf), ".%06ld", jump_sline_fraction);
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len = (int) strlen(buf);
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while (len > 2 && buf[len-1] == '0')
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len--;
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buf[len] = '\0';
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parg.p_string = buf;
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error("Position target at screen position %s", &parg);
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}
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break;
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}
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}
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public void calc_jump_sline(void)
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{
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if (jump_sline_fraction < 0)
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return;
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jump_sline = muldiv(sc_height, jump_sline_fraction, NUM_FRAC_DENOM);
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}
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/*
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* Handlers for -# option.
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*/
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public void opt_shift(int type, char *s)
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{
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PARG parg;
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int len;
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int err;
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switch (type)
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{
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case INIT:
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case TOGGLE:
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if (*s == '.')
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{
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s++;
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shift_count_fraction = getfraction(&s, "#", &err);
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if (err)
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error("Invalid column fraction", NULL_PARG);
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else
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calc_shift_count();
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} else
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{
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int hs = getnum(&s, "#", &err);
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if (err)
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error("Invalid column number", NULL_PARG);
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else
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{
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shift_count = hs;
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shift_count_fraction = -1;
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}
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}
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break;
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case QUERY:
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if (shift_count_fraction < 0)
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{
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parg.p_int = shift_count;
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error("Horizontal shift %d columns", &parg);
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} else
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{
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char buf[24];
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SNPRINTF1(buf, sizeof(buf), ".%06ld", shift_count_fraction);
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len = (int) strlen(buf);
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while (len > 2 && buf[len-1] == '0')
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len--;
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buf[len] = '\0';
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parg.p_string = buf;
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error("Horizontal shift %s of screen width", &parg);
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}
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break;
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}
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}
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public void calc_shift_count(void)
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{
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if (shift_count_fraction < 0)
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return;
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shift_count = muldiv(sc_width, shift_count_fraction, NUM_FRAC_DENOM);
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}
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#if USERFILE
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public void opt_k(int type, char *s)
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{
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PARG parg;
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switch (type)
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{
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case INIT:
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if (lesskey(s, 0))
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{
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parg.p_string = s;
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error("Cannot use lesskey file \"%s\"", &parg);
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}
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break;
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}
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}
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#if HAVE_LESSKEYSRC
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public void opt_ks(int type, char *s)
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{
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PARG parg;
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switch (type)
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{
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case INIT:
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if (lesskey_src(s, 0))
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{
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parg.p_string = s;
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error("Cannot use lesskey source file \"%s\"", &parg);
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}
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break;
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}
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}
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#endif /* HAVE_LESSKEYSRC */
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#endif /* USERFILE */
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#if TAGS
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/*
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* Handler for -t option.
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*/
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public void opt_t(int type, char *s)
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{
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IFILE save_ifile;
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POSITION pos;
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switch (type)
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{
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case INIT:
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tagoption = save(s);
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/* Do the rest in main() */
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break;
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case TOGGLE:
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if (secure)
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{
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error("tags support is not available", NULL_PARG);
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break;
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}
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findtag(skipsp(s));
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save_ifile = save_curr_ifile();
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/*
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* Try to open the file containing the tag
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* and search for the tag in that file.
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*/
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if (edit_tagfile() || (pos = tagsearch()) == NULL_POSITION)
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{
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/* Failed: reopen the old file. */
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reedit_ifile(save_ifile);
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break;
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}
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unsave_ifile(save_ifile);
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jump_loc(pos, jump_sline);
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break;
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}
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}
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/*
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* Handler for -T option.
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*/
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public void opt__T(int type, char *s)
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{
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PARG parg;
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char *filename;
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switch (type)
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{
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case INIT:
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tags = save(s);
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break;
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case TOGGLE:
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s = skipsp(s);
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if (tags != NULL && tags != ztags)
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free(tags);
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filename = lglob(s);
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tags = shell_unquote(filename);
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free(filename);
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break;
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case QUERY:
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parg.p_string = tags;
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error("Tags file \"%s\"", &parg);
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break;
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}
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}
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#endif
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/*
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* Handler for -p option.
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*/
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public void opt_p(int type, char *s)
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{
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switch (type)
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{
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case INIT:
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/*
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* Unget a command for the specified string.
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*/
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if (less_is_more)
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{
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/*
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* In "more" mode, the -p argument is a command,
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* not a search string, so we don't need a slash.
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*/
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every_first_cmd = save(s);
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} else
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{
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plusoption = TRUE;
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/*
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* {{ This won't work if the "/" command is
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* changed or invalidated by a .lesskey file. }}
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*/
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ungetsc("/");
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ungetsc(s);
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ungetcc_back(CHAR_END_COMMAND);
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}
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break;
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}
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}
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/*
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* Handler for -P option.
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*/
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public void opt__P(int type, char *s)
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{
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char **proto;
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PARG parg;
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switch (type)
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{
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case INIT:
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case TOGGLE:
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/*
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* Figure out which prototype string should be changed.
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*/
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switch (*s)
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{
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case 's': proto = &prproto[PR_SHORT]; s++; break;
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case 'm': proto = &prproto[PR_MEDIUM]; s++; break;
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case 'M': proto = &prproto[PR_LONG]; s++; break;
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case '=': proto = &eqproto; s++; break;
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case 'h': proto = &hproto; s++; break;
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case 'w': proto = &wproto; s++; break;
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default: proto = &prproto[PR_SHORT]; break;
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}
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free(*proto);
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*proto = save(s);
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break;
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case QUERY:
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parg.p_string = prproto[pr_type];
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error("%s", &parg);
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break;
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}
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}
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/*
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* Handler for the -b option.
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*/
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/*ARGSUSED*/
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public void opt_b(int type, char *s)
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{
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switch (type)
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{
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case INIT:
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case TOGGLE:
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/*
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* Set the new number of buffers.
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*/
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ch_setbufspace(bufspace);
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break;
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case QUERY:
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break;
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}
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}
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/*
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* Handler for the -i option.
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*/
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/*ARGSUSED*/
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public void opt_i(int type, char *s)
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{
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switch (type)
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{
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case TOGGLE:
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chg_caseless();
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break;
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case QUERY:
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case INIT:
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break;
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}
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}
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/*
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* Handler for the -V option.
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*/
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/*ARGSUSED*/
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public void opt__V(int type, char *s)
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{
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switch (type)
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{
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case TOGGLE:
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case QUERY:
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dispversion();
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break;
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case INIT:
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set_output(1); /* Force output to stdout per GNU standard for --version output. */
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putstr("less ");
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putstr(version);
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putstr(" (");
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putstr(pattern_lib_name());
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putstr(" regular expressions)\n");
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{
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char constant *copyright =
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"Copyright (C) 1984-2023 Mark Nudelman\n\n";
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putstr(copyright);
|
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}
|
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if (version[strlen(version)-1] == 'x')
|
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{
|
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putstr("** This is an EXPERIMENTAL build of the 'less' software,\n");
|
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putstr("** and may not function correctly.\n");
|
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putstr("** Obtain release builds from the web page below.\n\n");
|
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}
|
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#if LESSTEST
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putstr("This build supports LESSTEST.\n");
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#endif /*LESSTEST*/
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putstr("less comes with NO WARRANTY, to the extent permitted by law.\n");
|
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putstr("For information about the terms of redistribution,\n");
|
|
putstr("see the file named README in the less distribution.\n");
|
|
putstr("Home page: https://greenwoodsoftware.com/less\n");
|
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quit(QUIT_OK);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#if MSDOS_COMPILER
|
|
/*
|
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* Parse an MSDOS color descriptor.
|
|
*/
|
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static void colordesc(char *s, int *fg_color, int *bg_color)
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|
{
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int fg, bg;
|
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#if MSDOS_COMPILER==WIN32C
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|
int ul = 0;
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|
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if (*s == 'u')
|
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{
|
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ul = COMMON_LVB_UNDERSCORE;
|
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s++;
|
|
if (*s == '\0')
|
|
{
|
|
*fg_color = nm_fg_color | ul;
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|
*bg_color = nm_bg_color;
|
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return;
|
|
}
|
|
}
|
|
#endif
|
|
if (parse_color(s, &fg, &bg) == CT_NULL)
|
|
{
|
|
PARG p;
|
|
p.p_string = s;
|
|
error("Invalid color string \"%s\"", &p);
|
|
} else
|
|
{
|
|
if (fg == CV_NOCHANGE)
|
|
fg = nm_fg_color;
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if (bg == CV_NOCHANGE)
|
|
bg = nm_bg_color;
|
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#if MSDOS_COMPILER==WIN32C
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fg |= ul;
|
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#endif
|
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*fg_color = fg;
|
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*bg_color = bg;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static int color_from_namechar(char namechar)
|
|
{
|
|
switch (namechar)
|
|
{
|
|
case 'B': return AT_COLOR_BIN;
|
|
case 'C': return AT_COLOR_CTRL;
|
|
case 'E': return AT_COLOR_ERROR;
|
|
case 'H': return AT_COLOR_HEADER;
|
|
case 'M': return AT_COLOR_MARK;
|
|
case 'N': return AT_COLOR_LINENUM;
|
|
case 'P': return AT_COLOR_PROMPT;
|
|
case 'R': return AT_COLOR_RSCROLL;
|
|
case 'S': return AT_COLOR_SEARCH;
|
|
case 'W': case 'A': return AT_COLOR_ATTN;
|
|
case 'n': return AT_NORMAL;
|
|
case 's': return AT_STANDOUT;
|
|
case 'd': return AT_BOLD;
|
|
case 'u': return AT_UNDERLINE;
|
|
case 'k': return AT_BLINK;
|
|
default:
|
|
if (namechar >= '1' && namechar <= '0'+NUM_SEARCH_COLORS)
|
|
return AT_COLOR_SUBSEARCH(namechar-'0');
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the -D option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_D(int type, char *s)
|
|
{
|
|
PARG p;
|
|
int attr;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
#if MSDOS_COMPILER
|
|
if (*s == 'a')
|
|
{
|
|
sgr_mode = !sgr_mode;
|
|
break;
|
|
}
|
|
#endif
|
|
attr = color_from_namechar(s[0]);
|
|
if (attr < 0)
|
|
{
|
|
p.p_char = s[0];
|
|
error("Invalid color specifier '%c'", &p);
|
|
return;
|
|
}
|
|
if (!use_color && (attr & AT_COLOR))
|
|
{
|
|
error("Set --use-color before changing colors", NULL_PARG);
|
|
return;
|
|
}
|
|
s++;
|
|
#if MSDOS_COMPILER
|
|
if (!(attr & AT_COLOR))
|
|
{
|
|
switch (attr)
|
|
{
|
|
case AT_NORMAL:
|
|
colordesc(s, &nm_fg_color, &nm_bg_color);
|
|
break;
|
|
case AT_BOLD:
|
|
colordesc(s, &bo_fg_color, &bo_bg_color);
|
|
break;
|
|
case AT_UNDERLINE:
|
|
colordesc(s, &ul_fg_color, &ul_bg_color);
|
|
break;
|
|
case AT_BLINK:
|
|
colordesc(s, &bl_fg_color, &bl_bg_color);
|
|
break;
|
|
case AT_STANDOUT:
|
|
colordesc(s, &so_fg_color, &so_bg_color);
|
|
break;
|
|
}
|
|
if (type == TOGGLE)
|
|
{
|
|
at_enter(AT_STANDOUT);
|
|
at_exit();
|
|
}
|
|
} else
|
|
#endif
|
|
if (set_color_map(attr, s) < 0)
|
|
{
|
|
p.p_string = s;
|
|
error("Invalid color string \"%s\"", &p);
|
|
return;
|
|
}
|
|
break;
|
|
#if MSDOS_COMPILER
|
|
case QUERY:
|
|
p.p_string = (sgr_mode) ? "on" : "off";
|
|
error("SGR mode is %s", &p);
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/*
|
|
*/
|
|
public void set_tabs(char *s, int len)
|
|
{
|
|
int i;
|
|
char *es = s + len;
|
|
/* Start at 1 because tabstops[0] is always zero. */
|
|
for (i = 1; i < TABSTOP_MAX; )
|
|
{
|
|
int n = 0;
|
|
int v = FALSE;
|
|
while (s < es && *s == ' ')
|
|
s++;
|
|
for (; s < es && *s >= '0' && *s <= '9'; s++)
|
|
{
|
|
v |= ckd_mul(&n, n, 10);
|
|
v |= ckd_add(&n, n, *s - '0');
|
|
}
|
|
if (!v && n > tabstops[i-1])
|
|
tabstops[i++] = n;
|
|
while (s < es && *s == ' ')
|
|
s++;
|
|
if (s == es || *s++ != ',')
|
|
break;
|
|
}
|
|
if (i < 2)
|
|
return;
|
|
ntabstops = i;
|
|
tabdefault = tabstops[ntabstops-1] - tabstops[ntabstops-2];
|
|
}
|
|
|
|
/*
|
|
* Handler for the -x option.
|
|
*/
|
|
public void opt_x(int type, char *s)
|
|
{
|
|
char msg[60+((INT_STRLEN_BOUND(int)+1)*TABSTOP_MAX)];
|
|
int i;
|
|
PARG p;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
set_tabs(s, strlen(s));
|
|
break;
|
|
case QUERY:
|
|
strcpy(msg, "Tab stops ");
|
|
if (ntabstops > 2)
|
|
{
|
|
for (i = 1; i < ntabstops; i++)
|
|
{
|
|
if (i > 1)
|
|
strcat(msg, ",");
|
|
sprintf(msg+strlen(msg), "%d", tabstops[i]);
|
|
}
|
|
sprintf(msg+strlen(msg), " and then ");
|
|
}
|
|
sprintf(msg+strlen(msg), "every %d spaces",
|
|
tabdefault);
|
|
p.p_string = msg;
|
|
error("%s", &p);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Handler for the -" option.
|
|
*/
|
|
public void opt_quote(int type, char *s)
|
|
{
|
|
char buf[3];
|
|
PARG parg;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
if (s[0] == '\0')
|
|
{
|
|
openquote = closequote = '\0';
|
|
break;
|
|
}
|
|
if (s[1] != '\0' && s[2] != '\0')
|
|
{
|
|
error("-\" must be followed by 1 or 2 chars", NULL_PARG);
|
|
return;
|
|
}
|
|
openquote = s[0];
|
|
if (s[1] == '\0')
|
|
closequote = openquote;
|
|
else
|
|
closequote = s[1];
|
|
break;
|
|
case QUERY:
|
|
buf[0] = openquote;
|
|
buf[1] = closequote;
|
|
buf[2] = '\0';
|
|
parg.p_string = buf;
|
|
error("quotes %s", &parg);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --rscroll option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_rscroll(int type, char *s)
|
|
{
|
|
PARG p;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE: {
|
|
char *fmt;
|
|
int attr = AT_STANDOUT;
|
|
setfmt(s, &fmt, &attr, "*s>", FALSE);
|
|
if (strcmp(fmt, "-") == 0)
|
|
{
|
|
rscroll_char = 0;
|
|
} else
|
|
{
|
|
rscroll_char = *fmt ? *fmt : '>';
|
|
rscroll_attr = attr|AT_COLOR_RSCROLL;
|
|
}
|
|
break; }
|
|
case QUERY: {
|
|
p.p_string = rscroll_char ? prchar(rscroll_char) : "-";
|
|
error("rscroll character is %s", &p);
|
|
break; }
|
|
}
|
|
}
|
|
|
|
/*
|
|
* "-?" means display a help message.
|
|
* If from the command line, exit immediately.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_query(int type, char *s)
|
|
{
|
|
switch (type)
|
|
{
|
|
case QUERY:
|
|
case TOGGLE:
|
|
error("Use \"h\" for help", NULL_PARG);
|
|
break;
|
|
case INIT:
|
|
dohelp = 1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --mouse option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_mousecap(int type, char *s)
|
|
{
|
|
switch (type)
|
|
{
|
|
case TOGGLE:
|
|
if (mousecap == OPT_OFF)
|
|
deinit_mouse();
|
|
else
|
|
init_mouse();
|
|
break;
|
|
case INIT:
|
|
case QUERY:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --wheel-lines option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_wheel_lines(int type, char *s)
|
|
{
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
if (wheel_lines <= 0)
|
|
wheel_lines = default_wheel_lines();
|
|
break;
|
|
case QUERY:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --line-number-width option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_linenum_width(int type, char *s)
|
|
{
|
|
PARG parg;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
if (linenum_width > MAX_LINENUM_WIDTH)
|
|
{
|
|
parg.p_int = MAX_LINENUM_WIDTH;
|
|
error("Line number width must not be larger than %d", &parg);
|
|
linenum_width = MIN_LINENUM_WIDTH;
|
|
}
|
|
break;
|
|
case QUERY:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --status-column-width option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_status_col_width(int type, char *s)
|
|
{
|
|
PARG parg;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
if (status_col_width > MAX_STATUSCOL_WIDTH)
|
|
{
|
|
parg.p_int = MAX_STATUSCOL_WIDTH;
|
|
error("Status column width must not be larger than %d", &parg);
|
|
status_col_width = 2;
|
|
}
|
|
break;
|
|
case QUERY:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --file-size option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_filesize(int type, char *s)
|
|
{
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
if (want_filesize && curr_ifile != NULL && ch_length() == NULL_POSITION)
|
|
scan_eof();
|
|
break;
|
|
case QUERY:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --intr option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_intr(int type, char *s)
|
|
{
|
|
PARG p;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
intr_char = *s;
|
|
if (intr_char == '^' && s[1] != '\0')
|
|
intr_char = CONTROL(s[1]);
|
|
break;
|
|
case QUERY: {
|
|
p.p_string = prchar(intr_char);
|
|
error("interrupt character is %s", &p);
|
|
break; }
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --header option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_header(int type, char *s)
|
|
{
|
|
int err;
|
|
int n;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
header_lines = 0;
|
|
header_cols = 0;
|
|
if (*s != ',')
|
|
{
|
|
n = getnum(&s, "header", &err);
|
|
if (err)
|
|
{
|
|
error("invalid number of lines", NULL_PARG);
|
|
return;
|
|
}
|
|
header_lines = n;
|
|
}
|
|
if (*s == ',')
|
|
{
|
|
++s;
|
|
n = getnum(&s, "header", &err);
|
|
if (err)
|
|
error("invalid number of columns", NULL_PARG);
|
|
else
|
|
header_cols = n;
|
|
}
|
|
break;
|
|
case QUERY:
|
|
{
|
|
char buf[2*INT_STRLEN_BOUND(int)+2];
|
|
PARG parg;
|
|
SNPRINTF2(buf, sizeof(buf), "%d,%d", header_lines, header_cols);
|
|
parg.p_string = buf;
|
|
error("header (lines,columns) is %s", &parg);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handler for the --search-options option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_search_type(int type, char *s)
|
|
{
|
|
int st;
|
|
PARG parg;
|
|
char buf[16];
|
|
char *bp;
|
|
int i;
|
|
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
case TOGGLE:
|
|
st = 0;
|
|
for (; *s != '\0'; s++)
|
|
{
|
|
switch (*s)
|
|
{
|
|
case 'E': case 'e': case CONTROL('E'): st |= SRCH_PAST_EOF; break;
|
|
case 'F': case 'f': case CONTROL('F'): st |= SRCH_FIRST_FILE; break;
|
|
case 'K': case 'k': case CONTROL('K'): st |= SRCH_NO_MOVE; break;
|
|
case 'N': case 'n': case CONTROL('N'): st |= SRCH_NO_MATCH; break;
|
|
case 'R': case 'r': case CONTROL('R'): st |= SRCH_NO_REGEX; break;
|
|
case 'W': case 'w': case CONTROL('W'): st |= SRCH_WRAP; break;
|
|
case '-': st = 0; break;
|
|
case '^': break;
|
|
default:
|
|
if (*s >= '1' && *s <= '0'+NUM_SEARCH_COLORS)
|
|
{
|
|
st |= SRCH_SUBSEARCH(*s-'0');
|
|
break;
|
|
}
|
|
parg.p_char = *s;
|
|
error("invalid search option '%c'", &parg);
|
|
return;
|
|
}
|
|
}
|
|
def_search_type = norm_search_type(st);
|
|
break;
|
|
case QUERY:
|
|
bp = buf;
|
|
if (def_search_type & SRCH_PAST_EOF) *bp++ = 'E';
|
|
if (def_search_type & SRCH_FIRST_FILE) *bp++ = 'F';
|
|
if (def_search_type & SRCH_NO_MOVE) *bp++ = 'K';
|
|
if (def_search_type & SRCH_NO_MATCH) *bp++ = 'N';
|
|
if (def_search_type & SRCH_NO_REGEX) *bp++ = 'R';
|
|
if (def_search_type & SRCH_WRAP) *bp++ = 'W';
|
|
for (i = 1; i <= NUM_SEARCH_COLORS; i++)
|
|
if (def_search_type & SRCH_SUBSEARCH(i))
|
|
*bp++ = '0'+i;
|
|
if (bp == buf)
|
|
*bp++ = '-';
|
|
*bp = '\0';
|
|
parg.p_string = buf;
|
|
error("search options: %s", &parg);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#if LESSTEST
|
|
/*
|
|
* Handler for the --tty option.
|
|
*/
|
|
/*ARGSUSED*/
|
|
public void opt_ttyin_name(int type, char *s)
|
|
{
|
|
switch (type)
|
|
{
|
|
case INIT:
|
|
ttyin_name = s;
|
|
is_tty = 1;
|
|
break;
|
|
}
|
|
}
|
|
#endif /*LESSTEST*/
|
|
|
|
public int chop_line(void)
|
|
{
|
|
return (chopline || header_cols > 0 || header_lines > 0);
|
|
}
|
|
|
|
/*
|
|
* Get the "screen window" size.
|
|
*/
|
|
public int get_swindow(void)
|
|
{
|
|
if (swindow > 0)
|
|
return (swindow);
|
|
return (sc_height - header_lines + swindow);
|
|
}
|
|
|