/contrib/tcsh/vms.termcap.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 354 lines · 262 code · 31 blank · 61 comment · 103 complexity · a84e45f6a0a6f65499b0c9860f669da9 MD5 · raw file
- /* $Header: /p/tcsh/cvsroot/tcsh/vms.termcap.c,v 1.12 2011/01/09 16:25:29 christos Exp $ */
- /*
- * termcap.c 1.1 20/7/87 agc Joypace Ltd
- *
- * Copyright Joypace Ltd, London, UK, 1987. All rights reserved.
- * This file may be freely distributed provided that this notice
- * remains attached.
- *
- * A public domain implementation of the termcap(3) routines.
- */
- #include "sh.h"
- RCSID("$tcsh: vms.termcap.c,v 1.12 2011/01/09 16:25:29 christos Exp $")
- #if defined(_VMS_POSIX) || defined(_OSD_POSIX) || defined(__ANDROID__)
- /* efth 1988-Apr-29
- - Correct when TERM != name and TERMCAP is defined [tgetent]
- - Correct the comparison for the terminal name [tgetent]
- - Correct the value of ^x escapes [tgetstr]
- - Added %r to reverse row/column [tgoto]
- Paul Gillingwater <paul@actrix.gen.nz> July 1992
- - Modified to allow terminal aliases in termcap file
- - Uses TERMCAP environment variable for file only
- */
- #include <stdio.h>
- #include <string.h>
- #define CAPABLEN 2
- #define ISSPACE(c) ((c) == ' ' || (c) == '\t' || (c) == '\r' || (c) == '\n')
- #define ISDIGIT(x) ((x) >= '0' && (x) <= '9')
- char *capab; /* the capability itself */
- extern char *getenv(); /* new, improved getenv */
- #ifndef fopen
- extern FILE *fopen(); /* old fopen */
- #endif
- /*
- * tgetent - get the termcap entry for terminal name, and put it
- * in bp (which must be an array of 1024 chars). Returns 1 if
- * termcap entry found, 0 if not found, and -1 if file not found.
- */
- int
- tgetent(char *bp, char *name)
- {
- #ifdef __ANDROID__
- /* Use static termcap entry since termcap file usually doesn't exist. */
- capab = bp;
- strcpy(bp,
- "linux|linux console:"
- ":am:eo:mi:ms:xn:xo:"
- ":it#8:"
- ":AL=\\E[%dL:DC=\\E[%dP:DL=\\E[%dM:IC=\\E[%d@:K2=\\E[G:al=\\E[L:"
- ":bl=^G:cd=\\E[J:ce=\\E[K:cl=\\E[H\\E[J:cm=\\E[%i%d;%dH:cr=^M:"
- ":cs=\\E[%i%d;%dr:ct=\\E[3g:dc=\\E[P:dl=\\E[M:do=^J:ec=\\E[%dX:"
- ":ei=\\E[4l:ho=\\E[H:ic=\\E[@:im=\\E[4h:k1=\\E[[A:k2=\\E[[B:"
- ":k3=\\E[[C:k4=\\E[[D:k5=\\E[[E:k6=\\E[17~:k7=\\E[18~:k8=\\E[19~:"
- ":k9=\\E[20~:kD=\\E[3~:kI=\\E[2~:kN=\\E[6~:kP=\\E[5~:kb=\\177:"
- ":kd=\\E[B:kh=\\E[1~:kl=\\E[D:kr=\\E[C:ku=\\E[A:le=^H:mb=\\E[5m:"
- ":md=\\E[1m:me=\\E[0m:mh=\\E[2m:mr=\\E[7m:nd=\\E[C:nw=^M^J:"
- ":rc=\\E8:sc=\\E7:se=\\E[27m:sf=^J:so=\\E[7m:sr=\\EM:st=\\EH:ta=^I:"
- ":ue=\\E[24m:up=\\E[A:us=\\E[4m:vb=200\\E[?5h\\E[?5l:"
- ":ve=\\E[?25h\\E[?0c:vi=\\E[?25l\\E[?1c:vs=\\E[?25h\\E[?0c:"
- );
- return(1);
- #else
- FILE *fp;
- char *termfile;
- char *cp,
- *ptr, /* temporary pointer */
- tmp[1024]; /* buffer for terminal name *//*FIXBUF*/
- size_t len = strlen(name);
- capab = bp;
- /* Use TERMCAP to override default. */
- termfile = getenv("TERMCAP");
- if (termfile == NULL ) termfile = "/etc/termcap";
- if ((fp = fopen(termfile, "r")) == (FILE *) NULL) {
- fprintf(stderr, CGETS(31, 1,
- "Can't open TERMCAP: [%s]\n"), termfile);
- fprintf(stderr, CGETS(31, 2, "Can't open %s.\n"), termfile);
- sleep(1);
- return(-1);
- }
- while (fgets(bp, 1024, fp) != NULL) {
- /* Any line starting with # or NL is skipped as a comment */
- if ((*bp == '#') || (*bp == '\n')) continue;
- /* Look for lines which end with two backslashes,
- and then append the next line. */
- while (*(cp = &bp[strlen(bp) - 2]) == '\\')
- fgets(cp, 1024, fp);
- /* Skip over any spaces or tabs */
- for (++cp ; ISSPACE(*cp) ; cp++);
- /* Make sure "name" matches exactly (efth) */
- /* Here we might want to look at any aliases as well. We'll use
- sscanf to look at aliases. These are delimited by '|'. */
- sscanf(bp,"%[^|]",tmp);
- if (strncmp(name, tmp, len) == 0) {
- fclose(fp);
- #ifdef DEBUG
- fprintf(stderr, CGETS(31, 3, "Found %s in %s.\n"), name, termfile);
- sleep(1);
- #endif /* DEBUG */
- return(1);
- }
- ptr = bp;
- while ((ptr = strchr(ptr,'|')) != NULL) {
- ptr++;
- if (strchr(ptr,'|') == NULL) break;
- sscanf(ptr,"%[^|]",tmp);
- if (strncmp(name, tmp, len) == 0) {
- fclose(fp);
- #ifdef DEBUG
- fprintf(stderr,CGETS(31, 3, "Found %s in %s.\n"), name, termfile);
- sleep(1);
- #endif /* DEBUG */
- return(1);
- }
- }
- }
- /* If we get here, then we haven't found a match. */
- fclose(fp);
- #ifdef DEBUG
- fprintf(stderr,CGETS(31, 4, "No match found for %s in file %s\n"),
- name, termfile);
- sleep(1);
- #endif /* DEBUG */
- return(0);
- #endif /* ANDROID */
- }
- /*
- * tgetnum - get the numeric terminal capability corresponding
- * to id. Returns the value, -1 if invalid.
- */
- int
- tgetnum(char *id)
- {
- char *cp;
- int ret;
- if ((cp = capab) == NULL || id == NULL)
- return(-1);
- while (*++cp != ':')
- ;
- for (++cp ; *cp ; cp++) {
- while (ISSPACE(*cp))
- cp++;
- if (strncmp(cp, id, CAPABLEN) == 0) {
- while (*cp && *cp != ':' && *cp != '#')
- cp++;
- if (*cp != '#')
- return(-1);
- for (ret = 0, cp++ ; *cp && ISDIGIT(*cp) ; cp++)
- ret = ret * 10 + *cp - '0';
- return(ret);
- }
- while (*cp && *cp != ':')
- cp++;
- }
- return(-1);
- }
- /*
- * tgetflag - get the boolean flag corresponding to id. Returns -1
- * if invalid, 0 if the flag is not in termcap entry, or 1 if it is
- * present.
- */
- int
- tgetflag(char *id)
- {
- char *cp;
- if ((cp = capab) == NULL || id == NULL)
- return(-1);
- while (*++cp != ':')
- ;
- for (++cp ; *cp ; cp++) {
- while (ISSPACE(*cp))
- cp++;
- if (strncmp(cp, id, CAPABLEN) == 0)
- return(1);
- while (*cp && *cp != ':')
- cp++;
- }
- return(0);
- }
- /*
- * tgetstr - get the string capability corresponding to id and place
- * it in area (advancing area at same time). Expand escape sequences
- * etc. Returns the string, or NULL if it can't do it.
- */
- char *
- tgetstr(char *id, char **area)
- {
- char *cp;
- char *ret;
- int i;
- if ((cp = capab) == NULL || id == NULL)
- return(NULL);
- while (*++cp != ':')
- ;
- for (++cp ; *cp ; cp++) {
- while (ISSPACE(*cp))
- cp++;
- if (strncmp(cp, id, CAPABLEN) == 0) {
- while (*cp && *cp != ':' && *cp != '=')
- cp++;
- if (*cp != '=')
- return(NULL);
- for (ret = *area, cp++; *cp && *cp != ':' ;
- (*area)++, cp++)
- switch(*cp) {
- case '^' :
- **area = *++cp - '@'; /* fix (efth)*/
- break;
- case '\\' :
- switch(*++cp) {
- case 'E' :
- **area = CTL_ESC('\033');
- break;
- case 'n' :
- **area = '\n';
- break;
- case 'r' :
- **area = '\r';
- break;
- case 't' :
- **area = '\t';
- break;
- case 'b' :
- **area = '\b';
- break;
- case 'f' :
- **area = '\f';
- break;
- case '0' :
- case '1' :
- case '2' :
- case '3' :
- for (i=0 ; *cp && ISDIGIT(*cp) ;
- cp++)
- i = i * 8 + *cp - '0';
- **area = i;
- cp--;
- break;
- case '^' :
- case '\\' :
- **area = *cp;
- break;
- }
- break;
- default :
- **area = *cp;
- }
- *(*area)++ = '\0';
- return(ret);
- }
- while (*cp && *cp != ':')
- cp++;
- }
- return(NULL);
- }
- /*
- * tgoto - given the cursor motion string cm, make up the string
- * for the cursor to go to (destcol, destline), and return the string.
- * Returns "OOPS" if something's gone wrong, or the string otherwise.
- */
- char *
- tgoto(char *cm, int destcol, int destline)
- {
- char *rp;
- static char ret[24];
- int incr = 0;
- int argno = 0, numval;
- for (rp = ret ; *cm ; cm++) {
- switch(*cm) {
- case '%' :
- switch(*++cm) {
- case '+' :
- numval = (argno == 0 ? destline : destcol);
- argno = 1 - argno;
- *rp++ = numval + incr + *++cm;
- break;
- case '%' :
- *rp++ = '%';
- break;
- case 'i' :
- incr = 1;
- break;
- case 'd' :
- numval = (argno == 0 ? destline : destcol);
- numval += incr;
- argno = 1 - argno;
- *rp++ = '0' + (numval/10);
- *rp++ = '0' + (numval%10);
- break;
- case 'r' :
- argno = 1;
- break;
- }
- break;
- default :
- *rp++ = *cm;
- }
- }
- *rp = '\0';
- return(ret);
- }
- /*
- * tputs - put the string cp out onto the terminal, using the function
- * outc. This should do padding for the terminal, but I can't find a
- * terminal that needs padding at the moment...
- */
- int
- tputs(char *cp, int affcnt, int (*outc)())
- {
- unsigned long delay = 0;
- if (cp == NULL)
- return(1);
- /* do any padding interpretation - left null for MINIX just now */
- for (delay = 0; *cp && ISDIGIT(*cp) ; cp++)
- delay = delay * 10 + *cp - '0';
- while (*cp)
- (*outc)(*cp++);
- #ifdef _OSD_POSIX
- usleep(delay*100); /* strictly spoken, it should be *1000 */
- #endif
- return(1);
- }
- #endif /* _VMS_POSIX || _OSD_POSIX */