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Merge implementations of fill-paragraph and justify-paragraph.
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d7649cf554
commit
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200
word.c
200
word.c
@ -27,9 +27,7 @@
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#define ALLOCSZ 32
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#define TAB 0x09 /* a tab character */
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#if PKCODE
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static int justflag = FALSE ; /* justify, don't fill */
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#endif
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static int inword( void) ;
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@ -348,23 +346,18 @@ static int inword( void) {
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}
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#if WORDPRO
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/*
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* Fill the current paragraph according to the current
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* fill column
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*
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* f and n - deFault flag and Numeric argument
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*/
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int fillpara(int f, int n)
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{
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static int parafillnjustify( int f, int n, int justify_f) {
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unicode_t c; /* current char during scan */
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unicode_t *wbuf ; /* buffer for current word */
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int wbufsize ;
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int wordlen; /* length of current word */
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int clength; /* position on line during fill */
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int i; /* index during word copy */
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// int i; /* index during word copy */
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int eopflag; /* Are we at the End-Of-Paragraph? */
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int firstflag; /* first word? (needs no space) */
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struct line *eopline; /* pointer to line just past EOP */
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int dotflag = 0 ; /* was the last char a period? */
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int leftmarg = 0 ; /* left marginal */
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if (curbp->b_mode & MDVIEW) /* don't allow this command if */
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return rdonly(); /* we are in read only mode */
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@ -372,130 +365,23 @@ int fillpara(int f, int n)
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mloutstr( "No fill column set") ;
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return FALSE;
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}
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#if PKCODE
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justflag = FALSE;
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#endif
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wbufsize = ALLOCSZ ;
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wbuf = malloc( ALLOCSZ * sizeof *wbuf) ;
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if( NULL == wbuf)
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return FALSE ;
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/* record the pointer to the line just past the EOP */
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gotoeop(FALSE, 1);
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eopline = lforw(curwp->w_dotp);
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/* and back top the beginning of the paragraph */
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gotobop(FALSE, 1);
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/* initialize various info */
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clength = getccol( FALSE) ;
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wordlen = 0;
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/* scan through lines, filling words */
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firstflag = TRUE;
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eopflag = FALSE;
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while (!eopflag) {
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int bytes = 1;
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/* get the next character in the paragraph */
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if (curwp->w_doto == llength(curwp->w_dotp)) {
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c = ' ';
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if (lforw(curwp->w_dotp) == eopline)
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eopflag = TRUE;
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} else
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bytes = lgetchar(&c);
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/* and then delete it */
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ldelete(bytes, FALSE);
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/* if not a separator, just add it in */
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if (c != ' ' && c != '\t') {
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if (wordlen < wbufsize)
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wbuf[wordlen++] = c;
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else {
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/* overflow */
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unicode_t *newptr ;
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newptr = realloc( wbuf, (wbufsize + ALLOCSZ) * sizeof *wbuf) ;
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if( newptr != NULL) {
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wbuf = newptr ;
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wbufsize += ALLOCSZ ;
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wbuf[ wordlen++] = c ;
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} /* else the word is truncated silently */
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}
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} else if (wordlen) {
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/* at a word break with a word waiting */
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/* calculate tentative new length with word added */
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if( fillcol > clength + 1 + wordlen) {
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/* add word to current line */
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if (!firstflag) {
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linsert(1, ' '); /* the space */
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++clength;
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}
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firstflag = FALSE;
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} else {
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/* start a new line */
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lnewline();
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clength = 0;
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}
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/* and add the word in in either case */
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for (i = 0; i < wordlen; i++) {
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c = wbuf[ i] ;
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linsert(1, c);
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++clength;
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}
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if( c == '.') { /* was the last char a period? */
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linsert(1, ' ');
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++clength;
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}
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wordlen = 0;
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}
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}
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/* and add a last newline for the end of our new paragraph */
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lnewline();
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free( wbuf) ;
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return TRUE;
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}
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#if PKCODE
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/* Fill the current paragraph according to the current
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* fill column and cursor position
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*
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* int f, n; deFault flag and Numeric argument
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*/
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int justpara(int f, int n)
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{
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unicode_t c; /* current char during scan */
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unicode_t *wbuf ; /* buffer for current word */
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int wbufsize ;
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int wordlen; /* length of current word */
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int clength; /* position on line during fill */
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int i; /* index during word copy */
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int eopflag; /* Are we at the End-Of-Paragraph? */
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int firstflag; /* first word? (needs no space) */
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struct line *eopline; /* pointer to line just past EOP */
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int leftmarg; /* left marginal */
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if (curbp->b_mode & MDVIEW) /* don't allow this command if */
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return rdonly(); /* we are in read only mode */
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if (fillcol == 0) { /* no fill column set */
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mloutstr( "No fill column set") ;
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return FALSE;
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}
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justflag = TRUE;
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if( justify_f) {
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leftmarg = getccol( FALSE) ;
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if (leftmarg + 10 > fillcol) {
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mloutstr( "Column too narrow") ;
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return FALSE;
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}
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justflag = justify_f ;
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}
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wbufsize = ALLOCSZ ;
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wbuf = malloc( ALLOCSZ * sizeof *wbuf) ;
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if( NULL == wbuf)
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if( NULL == wbuf) {
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justflag = FALSE ;
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return FALSE ;
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}
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/* record the pointer to the line just past the EOP */
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gotoeop(FALSE, 1);
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@ -505,11 +391,10 @@ int justpara(int f, int n)
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gotobop(FALSE, 1);
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/* initialize various info */
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if (leftmarg < llength(curwp->w_dotp))
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if( justflag && leftmarg < llength(curwp->w_dotp))
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setccol( leftmarg) ;
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clength = getccol( FALSE) ;
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wordlen = 0;
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/* scan through lines, filling words */
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@ -546,41 +431,64 @@ int justpara(int f, int n)
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}
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} else if (wordlen) {
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/* at a word break with a word waiting */
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/* calculate tentative new length with word added */
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if( fillcol > clength + 1 + wordlen) {
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/* add word to current line */
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if (!firstflag) {
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linsert(1, ' '); /* the space */
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++clength;
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}
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if( firstflag)
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firstflag = FALSE ;
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else {
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/* calculate tentative new length with word added */
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if( fillcol > clength + dotflag + 1 + wordlen) {
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/* add word to current line */
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linsert( dotflag + 1, ' ') ; /* the space */
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clength += dotflag + 1 ;
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} else {
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/* start a new line */
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lnewline();
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for (i = 0; i < leftmarg; i++)
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linsert(1, ' ');
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linsert( leftmarg, ' ') ;
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clength = leftmarg;
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}
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}
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/* and add the word in in either case */
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for (i = 0; i < wordlen; i++) {
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linsert(1, wbuf[i]);
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for( int i = 0 ; i < wordlen ; i++) {
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c = wbuf[ i] ;
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linsert( 1, c) ;
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++clength;
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}
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dotflag = c == '.' ; /* was the last char a period? */
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wordlen = 0;
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}
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}
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/* and add a last newline for the end of our new paragraph */
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lnewline();
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if( justflag) {
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forwword(FALSE, 1);
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setccol( leftmarg) ;
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justflag = FALSE;
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}
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free( wbuf) ;
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return TRUE;
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}
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#endif
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/*
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* Fill the current paragraph according to the current
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* fill column
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*
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* f and n - deFault flag and Numeric argument
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*/
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int fillpara( int f, int n) {
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return parafillnjustify( f, n, FALSE) ;
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}
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/* Fill the current paragraph according to the current
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* fill column and cursor position
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*
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* int f, n; deFault flag and Numeric argument
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*/
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int justpara( int f, int n) {
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return parafillnjustify( f, n, TRUE) ;
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}
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/*
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* delete n paragraphs starting with the current one
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@ -681,9 +589,7 @@ int wordcount(int f, int n)
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nwords, nchars, nlines + 1, avgch) ;
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return TRUE;
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}
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#endif
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#if WORDPRO
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/*
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* go back to the beginning of the current paragraph
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* here we look for a <NL><NL> or <NL><TAB> or <NL><SPACE>
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@ -707,14 +613,10 @@ int gotobop(int f, int n)
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or a <NL><SPACE> */
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while (lback(curwp->w_dotp) != curbp->b_linep)
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if (llength(curwp->w_dotp) != 0 &&
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#if PKCODE
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((justflag == TRUE) ||
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#endif
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(lgetc(curwp->w_dotp, curwp->w_doto) != TAB &&
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lgetc(curwp->w_dotp, curwp->w_doto) != ' '))
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#if PKCODE
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)
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#endif
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curwp->w_dotp = lback(curwp->w_dotp);
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else
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break;
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@ -749,14 +651,10 @@ int gotoeop(int f, int n)
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or a <NL><SPACE> */
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while (curwp->w_dotp != curbp->b_linep) {
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if (llength(curwp->w_dotp) != 0 &&
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#if PKCODE
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((justflag == TRUE) ||
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#endif
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(lgetc(curwp->w_dotp, curwp->w_doto) != TAB &&
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lgetc(curwp->w_dotp, curwp->w_doto) != ' '))
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#if PKCODE
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)
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#endif
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curwp->w_dotp = lforw(curwp->w_dotp);
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else
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break;
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@ -771,3 +669,5 @@ int gotoeop(int f, int n)
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return TRUE;
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}
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#endif
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/* end of word.c */
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