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https://github.com/alrayyes/st
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Make selection consistent over line breaks.
Currently, selection is expanded to the end of the line over line breaks only in regular selection mode, when the line in not empty and when going down and/or right. This covers all the cases including word selection mode, with the exception of rectangular selection because it would make this mode too rigid. This adjustment is made in selsort so I renamed it to selnormalize to better reflect what it does now. Signed-off-by: Roberto E. Vargas Caballero <k0ga@shike2.com>
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parent
c6fcb78b3a
commit
2323e962e6
46
st.c
46
st.c
@ -441,7 +441,7 @@ static void selclear(XEvent *);
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static void selrequest(XEvent *);
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static void selinit(void);
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static void selsort(void);
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static void selnormalize(void);
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static inline bool selected(int, int);
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static char *getsel(void);
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static void selcopy(void);
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@ -657,8 +657,19 @@ y2row(int y) {
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return LIMIT(y, 0, term.row-1);
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}
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static int tlinelen(int y) {
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int i = term.col;
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while (i > 0 && term.line[y][i - 1].c[0] == ' ')
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--i;
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return i;
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}
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static void
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selsort(void) {
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selnormalize(void) {
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int i;
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if(sel.ob.y == sel.oe.y) {
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sel.nb.x = MIN(sel.ob.x, sel.oe.x);
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sel.ne.x = MAX(sel.ob.x, sel.oe.x);
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@ -668,6 +679,15 @@ selsort(void) {
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}
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sel.nb.y = MIN(sel.ob.y, sel.oe.y);
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sel.ne.y = MAX(sel.ob.y, sel.oe.y);
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/* expand selection over line breaks */
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if (sel.type == SEL_RECTANGULAR)
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return;
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i = tlinelen(sel.nb.y);
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if (i < sel.nb.x)
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sel.nb.x = i;
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if (tlinelen(sel.ne.y) <= sel.ne.x)
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sel.ne.x = term.col - 1;
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}
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static inline bool
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@ -683,8 +703,6 @@ selected(int x, int y) {
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void
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selsnap(int mode, int *x, int *y, int direction) {
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int i;
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switch(mode) {
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case SNAP_WORD:
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/*
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@ -716,7 +734,7 @@ selsnap(int mode, int *x, int *y, int direction) {
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continue;
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}
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if(strchr(worddelimiters,
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if(*x >= tlinelen(*y) || strchr(worddelimiters,
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term.line[*y][*x+direction].c[0])) {
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break;
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}
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@ -747,18 +765,6 @@ selsnap(int mode, int *x, int *y, int direction) {
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}
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}
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break;
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default:
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/*
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* Select the whole line when the end of line is reached.
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*/
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if(direction > 0) {
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i = term.col;
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while(--i > 0 && term.line[*y][i].c[0] == ' ')
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/* nothing */;
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if(i > 0 && i < *x)
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*x = term.col - 1;
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}
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break;
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}
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}
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@ -780,7 +786,7 @@ getbuttoninfo(XEvent *e) {
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selsnap(sel.snap, &sel.oe.x, &sel.oe.y, -1);
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selsnap(sel.snap, &sel.ob.x, &sel.ob.y, +1);
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}
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selsort();
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selnormalize();
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sel.type = SEL_REGULAR;
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for(type = 1; type < LEN(selmasks); ++type) {
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@ -896,7 +902,7 @@ bpress(XEvent *e) {
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}
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selsnap(sel.snap, &sel.ob.x, &sel.ob.y, -1);
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selsnap(sel.snap, &sel.oe.x, &sel.oe.y, +1);
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selsort();
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selnormalize();
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/*
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* Draw selection, unless it's regular and we don't want to
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@ -1451,7 +1457,7 @@ selscroll(int orig, int n) {
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sel.oe.x = term.col;
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}
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}
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selsort();
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selnormalize();
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}
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}
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