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-rw-r--r--st.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/st.c b/st.c
index 4fc4d3d..d169ddf 100644
--- a/st.c
+++ b/st.c
@@ -164,7 +164,7 @@ typedef struct {
int col; /* nb col */
Line* line; /* screen */
Line* alt; /* alternate screen */
- bool* dirty; /* dirtyness of lines */
+ bool* dirty; /* dirtyness of lines */
TCursor c; /* cursor */
int top; /* top scroll limit */
int bot; /* bottom scroll limit */
@@ -172,6 +172,7 @@ typedef struct {
int esc; /* escape state flags */
char title[ESC_TITLE_SIZ];
int titlelen;
+ bool *tabs;
} Term;
/* Purely graphic info */
@@ -847,12 +848,16 @@ tcursor(int mode) {
void
treset(void) {
+ unsigned i;
term.c = (TCursor){{
.mode = ATTR_NULL,
.fg = DefaultFG,
.bg = DefaultBG
}, .x = 0, .y = 0, .state = CURSOR_DEFAULT};
-
+
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
+ for (i = TAB; i < term.col; i += TAB)
+ term.tabs[i] = 1;
term.top = 0, term.bot = term.row - 1;
term.mode = MODE_WRAP;
tclearregion(0, 0, term.col-1, term.row-1);
@@ -865,12 +870,14 @@ tnew(int col, int row) {
term.line = malloc(term.row * sizeof(Line));
term.alt = malloc(term.row * sizeof(Line));
term.dirty = malloc(term.row * sizeof(*term.dirty));
+ term.tabs = malloc(term.col * sizeof(*term.tabs));
for(row = 0; row < term.row; row++) {
term.line[row] = malloc(term.col * sizeof(Glyph));
term.alt [row] = malloc(term.col * sizeof(Glyph));
term.dirty[row] = 0;
}
+ memset(term.tabs, 0, term.col * sizeof(*term.tabs));
/* setup screen */
treset();
}
@@ -1588,6 +1595,7 @@ tresize(int col, int row) {
term.line = realloc(term.line, row * sizeof(Line));
term.alt = realloc(term.alt, row * sizeof(Line));
term.dirty = realloc(term.dirty, row * sizeof(*term.dirty));
+ term.tabs = realloc(term.tabs, col * sizeof(*term.tabs));
/* resize each row to new width, zero-pad if needed */
for(i = 0; i < minrow; i++) {
@@ -1606,7 +1614,15 @@ tresize(int col, int row) {
term.line[i] = calloc(col, sizeof(Glyph));
term.alt [i] = calloc(col, sizeof(Glyph));
}
-
+ if (col > term.col) {
+ bool *bp = term.tabs + term.col;
+
+ memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
+ while (--bp > term.tabs && !*bp)
+ /* nothing */ ;
+ for (bp += TAB; bp < term.tabs + col; bp += TAB)
+ *bp = 1;
+ }
/* update terminal size */
term.col = col, term.row = row;
/* make use of the LIMIT in tmoveto */