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format-table: add a proper "underline" concept to cells

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This commit is contained in:
Lennart Poettering
2023-11-20 13:05:50 +01:00
parent 6ad2049dd9
commit aab79f5278
2 changed files with 117 additions and 15 deletions
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src/shared/format-table.c
+112 -15
View File
@@ -77,7 +77,9 @@ typedef struct TableData {
unsigned ellipsize_percent; /* 0 … 100, where to place the ellipsis when compression is needed */
unsigned align_percent; /* 0 … 100, where to pad with spaces when expanding is needed. 0: left-aligned, 100: right-aligned */
bool uppercase; /* Uppercase string on display */
bool uppercase:1; /* Uppercase string on display */
bool underline:1;
bool rgap_underline:1;
const char *color; /* ANSI color string to use for this cell. When written to terminal should not move cursor. Will automatically be reset after the cell */
const char *rgap_color; /* The ANSI color to use for the gap right of this cell. Usually used to underline entire rows in a gapless fashion */
@@ -401,7 +403,7 @@ static bool table_data_matches(
return false;
/* If a color/url is set, refuse to merge */
if (d->color || d->rgap_color)
if (d->color || d->rgap_color || d->underline || d->rgap_underline)
return false;
if (d->url)
return false;
@@ -617,6 +619,8 @@ static int table_dedup_cell(Table *t, TableCell *cell) {
nd->color = od->color;
nd->rgap_color = od->rgap_color;
nd->underline = od->underline;
nd->rgap_underline = od->rgap_underline;
nd->url = TAKE_PTR(curl);
table_data_unref(od);
@@ -759,6 +763,46 @@ int table_set_rgap_color(Table *t, TableCell *cell, const char *color) {
return 0;
}
int table_set_underline(Table *t, TableCell *cell, bool b) {
TableData *d;
int r;
assert(t);
assert(cell);
r = table_dedup_cell(t, cell);
if (r < 0)
return r;
assert_se(d = table_get_data(t, cell));
if (d->underline == b)
return 0;
d->underline = b;
return 1;
}
int table_set_rgap_underline(Table *t, TableCell *cell, bool b) {
TableData *d;
int r;
assert(t);
assert(cell);
r = table_dedup_cell(t, cell);
if (r < 0)
return r;
assert_se(d = table_get_data(t, cell));
if (d->rgap_underline == b)
return 0;
d->rgap_underline = b;
return 1;
}
int table_set_url(Table *t, TableCell *cell, const char *url) {
_cleanup_free_ char *copy = NULL;
int r;
@@ -834,6 +878,8 @@ int table_update(Table *t, TableCell *cell, TableDataType type, const void *data
nd->color = od->color;
nd->rgap_color = od->rgap_color;
nd->underline = od->underline;
nd->rgap_underline = od->rgap_underline;
nd->url = TAKE_PTR(curl);
table_data_unref(od);
@@ -1101,6 +1147,31 @@ int table_add_many_internal(Table *t, TableDataType first_type, ...) {
goto check;
}
case TABLE_SET_UNDERLINE: {
int u = va_arg(ap, int);
r = table_set_underline(t, last_cell, u);
goto check;
}
case TABLE_SET_RGAP_UNDERLINE: {
int u = va_arg(ap, int);
r = table_set_rgap_underline(t, last_cell, u);
goto check;
}
case TABLE_SET_BOTH_UNDERLINES: {
int u = va_arg(ap, int);
r = table_set_underline(t, last_cell, u);
if (r < 0) {
va_end(ap);
return r;
}
r = table_set_rgap_underline(t, last_cell, u);
goto check;
}
case TABLE_SET_URL: {
const char *u = va_arg(ap, const char*);
r = table_set_url(t, last_cell, u);
@@ -2130,8 +2201,6 @@ static const char* table_data_color(TableData *d) {
if (d->type == TABLE_FIELD)
return ansi_bright_blue();
if (d->type == TABLE_HEADER)
return ansi_underline();
return NULL;
}
@@ -2139,11 +2208,29 @@ static const char* table_data_color(TableData *d) {
static const char* table_data_rgap_color(TableData *d) {
assert(d);
if (d->rgap_color)
return d->rgap_color;
return d->rgap_color ?: d->rgap_color;
}
static const char* table_data_underline(TableData *d) {
assert(d);
if (d->underline)
return /* cescape( */ansi_add_underline_grey()/* ) */;
if (d->type == TABLE_HEADER)
return ansi_underline();
return ansi_add_underline();
return NULL;
}
static const char* table_data_rgap_underline(TableData *d) {
assert(d);
if (d->rgap_underline)
return ansi_add_underline_grey();
if (d->type == TABLE_HEADER)
return ansi_add_underline();
return NULL;
}
@@ -2418,13 +2505,13 @@ int table_print(Table *t, FILE *f) {
row = t->data + i * t->n_columns;
do {
const char *gap_color = NULL;
const char *gap_color = NULL, *gap_underline = NULL;
more_sublines = false;
for (size_t j = 0; j < display_columns; j++) {
_cleanup_free_ char *buffer = NULL, *extracted = NULL;
bool lines_truncated = false;
const char *field, *color = NULL;
const char *field, *color = NULL, *underline = NULL;
TableData *d;
size_t l;
@@ -2490,6 +2577,7 @@ int table_print(Table *t, FILE *f) {
/* Drop trailing white spaces of last column when no cosmetics is set. */
if (j == display_columns - 1 &&
(!colors_enabled() || !table_data_color(d)) &&
(!underline_enabled() || !table_data_underline(d)) &&
(!urlify_enabled() || !d->url))
delete_trailing_chars(aligned, NULL);
@@ -2511,27 +2599,36 @@ int table_print(Table *t, FILE *f) {
if (colors_enabled() && gap_color)
fputs(gap_color, f);
if (underline_enabled() && gap_underline)
fputs(gap_underline, f);
if (j > 0)
fputc(' ', f); /* column separator left of cell */
/* Undo gap color/underline */
if ((colors_enabled() && gap_color) ||
(underline_enabled() && gap_underline))
fputs(ANSI_NORMAL, f);
if (colors_enabled()) {
color = table_data_color(d);
/* Undo gap color */
if (gap_color)
fputs(ANSI_NORMAL, f);
if (color)
fputs(color, f);
}
if (underline_enabled()) {
underline = table_data_underline(d);
if (underline)
fputs(underline, f);
}
fputs(field, f);
if (colors_enabled() && color)
if (color || underline)
fputs(ANSI_NORMAL, f);
gap_color = table_data_rgap_color(d);
gap_underline = table_data_rgap_underline(d);
}
fputc('\n', f);
src/shared/format-table.h
+5
View File
@@ -68,6 +68,9 @@ typedef enum TableDataType {
TABLE_SET_COLOR,
TABLE_SET_RGAP_COLOR,
TABLE_SET_BOTH_COLORS,
TABLE_SET_UNDERLINE,
TABLE_SET_RGAP_UNDERLINE,
TABLE_SET_BOTH_UNDERLINES,
TABLE_SET_URL,
TABLE_SET_UPPERCASE,
@@ -111,6 +114,8 @@ int table_set_align_percent(Table *t, TableCell *cell, unsigned percent);
int table_set_ellipsize_percent(Table *t, TableCell *cell, unsigned percent);
int table_set_color(Table *t, TableCell *cell, const char *color);
int table_set_rgap_color(Table *t, TableCell *cell, const char *color);
int table_set_underline(Table *t, TableCell *cell, bool b);
int table_set_rgap_underline(Table *t, TableCell *cell, bool b);
int table_set_url(Table *t, TableCell *cell, const char *url);
int table_set_uppercase(Table *t, TableCell *cell, bool b);