mirror of https://github.com/rfivet/uemacs.git
Merge common implementation of case-region-lower and case-region-upper.
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region.c
195
region.c
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@ -1,13 +1,11 @@
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/* region.c -- implements region.h */
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#include "region.h"
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/* region.c
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*
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* The routines in this file deal with the region, that magic space
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* between "." and mark. Some functions are commands. Some functions are
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* just for internal use.
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*
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* Modified by Petri Kutvonen
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/* The routines in this file deal with the region, that magic space between
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"." and mark. Some functions are commands. Some functions are just for
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internal use.
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Modified by Petri Kutvonen
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*/
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#include <assert.h>
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@ -20,123 +18,114 @@
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#include "random.h"
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#include "window.h"
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/* Kill the region. Ask "getregion" to figure out the bounds of the
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* region. Move "." to the start, and kill the characters. Bound to
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* "C-W".
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/* Kill the region. Ask getregion() to figure out the bounds of the
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region. Move "." to the start, and kill the characters. Bound to C-W
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kill-region.
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*/
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BINDABLE( killregion) {
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int s;
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region_t region;
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region_t region ;
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assert( !(curbp->b_mode & MDVIEW)) ;
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if ((s = getregion(®ion)) != TRUE)
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return s;
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if ((lastflag & CFKILL) == 0) /* This is a kill type */
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kdelete(); /* command, so do magic */
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thisflag |= CFKILL; /* kill buffer stuff. */
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curwp->w_dotp = region.r_linep;
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curwp->w_doto = region.r_offset;
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return ldelete(region.r_size, TRUE);
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int ret = getregion( ®ion) ;
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if( ret != TRUE)
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return ret ;
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if( (lastflag & CFKILL) == 0) /* This is a kill type */
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kdelete() ; /* command, so do magic */
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thisflag |= CFKILL ; /* kill buffer stuff. */
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curwp->w_dotp = region.r_linep ;
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curwp->w_doto = region.r_offset ;
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return ldelete( region.r_size, TRUE) ;
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}
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/* Copy all of the characters in the region to the kill buffer. Don't move
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* dot at all. This is a bit like a kill region followed by a yank. Bound
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* to "M-W".
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dot at all. This is a bit like a kill region followed by a yank. Bound
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to M-W copy-region.
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*/
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BINDABLE( copyregion) {
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line_p linep;
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int loffs;
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int s;
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region_t region;
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region_t region ;
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if ((s = getregion(®ion)) != TRUE)
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return s;
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if ((lastflag & CFKILL) == 0) /* Kill type command. */
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kdelete();
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thisflag |= CFKILL;
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linep = region.r_linep; /* Current line. */
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loffs = region.r_offset; /* Current offset. */
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while (region.r_size--) {
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if (loffs == llength(linep)) { /* End of line. */
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if ((s = kinsert('\n')) != TRUE)
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return s;
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linep = lforw(linep);
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loffs = 0;
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int ret = getregion( ®ion) ;
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if( ret != TRUE)
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return ret ;
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if( (lastflag & CFKILL) == 0) /* Kill type command. */
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kdelete() ;
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thisflag |= CFKILL ;
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line_p linep = region.r_linep ; /* Current line. */
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int loffs = region.r_offset ; /* Current offset. */
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while( region.r_size--) {
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if( loffs == llength( linep)) { /* End of line. */
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ret = kinsert( '\n') ;
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if( ret != TRUE)
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return ret ;
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linep = lforw( linep) ;
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loffs = 0 ;
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} else { /* Middle of line. */
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if ((s = kinsert(lgetc(linep, loffs))) != TRUE)
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return s;
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++loffs;
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ret = kinsert( lgetc( linep, loffs)) ;
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if( ret != TRUE)
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return ret ;
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++loffs ;
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}
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}
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mloutstr( "(region copied)") ;
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return TRUE;
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return TRUE ;
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}
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/* Lower case region. Zap all of the upper case characters in the region
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* to lower case. Use the region code to set the limits. Scan the buffer,
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* doing the changes. Call "lchange" to ensure that redisplay is done in
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* all buffers. Bound to "C-X C-L".
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/* Lower case region & Upper case region. Zap all of the upper/lower case
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characters in the region to lower/upper case. Use the region code to
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set the limits. Scan the buffer, doing the changes. Call "lchange" to
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ensure that redisplay is done in all buffers. Bound to C-X C-L
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case-region-lower and C-X C-U case-region-upper.
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*/
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static int utol( int c) {
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return (c >= 'A' && c <= 'Z') ? c + 'a' - 'A' : -1 ;
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}
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static int ltou( int c) {
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return (c >= 'a' && c <= 'z') ? c + 'A' - 'a' : -1 ;
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}
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static int caseregion( int (* cconv)( int)) {
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region_t region ;
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assert( !(curbp->b_mode & MDVIEW)) ;
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int ret = getregion( ®ion) ;
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if( ret != TRUE)
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return ret ;
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lchange( WFHARD) ;
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line_p linep = region.r_linep ;
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int loffs = region.r_offset ;
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while( region.r_size--) {
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if( loffs == llength( linep)) {
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linep = lforw( linep) ;
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loffs = 0 ;
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} else {
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int c = cconv( lgetc( linep, loffs)) ;
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if( c != -1)
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lputc( linep, loffs, c) ;
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++loffs ;
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}
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}
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return TRUE ;
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}
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BINDABLE( lowerregion) {
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line_p linep;
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int loffs;
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int c;
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int s;
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region_t region;
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assert( !(curbp->b_mode & MDVIEW)) ;
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if ((s = getregion(®ion)) != TRUE)
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return s;
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lchange(WFHARD);
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linep = region.r_linep;
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loffs = region.r_offset;
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while (region.r_size--) {
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if (loffs == llength(linep)) {
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linep = lforw(linep);
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loffs = 0;
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} else {
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c = lgetc(linep, loffs);
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if (c >= 'A' && c <= 'Z')
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lputc(linep, loffs, c + 'a' - 'A');
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++loffs;
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}
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}
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return TRUE;
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return caseregion( utol) ;
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}
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/* Upper case region. Zap all of the lower case characters in the region
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* to upper case. Use the region code to set the limits. Scan the buffer,
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* doing the changes. Call "lchange" to ensure that redisplay is done in
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* all buffers. Bound to "C-X C-L".
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*/
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BINDABLE( upperregion) {
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line_p linep;
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int loffs;
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int c;
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int s;
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region_t region;
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assert( !(curbp->b_mode & MDVIEW)) ;
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if ((s = getregion(®ion)) != TRUE)
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return s;
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lchange(WFHARD);
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linep = region.r_linep;
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loffs = region.r_offset;
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while (region.r_size--) {
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if (loffs == llength(linep)) {
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linep = lforw(linep);
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loffs = 0;
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} else {
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c = lgetc(linep, loffs);
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if (c >= 'a' && c <= 'z')
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lputc(linep, loffs, c - 'a' + 'A');
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++loffs;
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}
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}
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return TRUE;
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return caseregion( ltou) ;
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}
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/* This routine figures out the bounds of the region in the current window,
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