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Add user-defined output formatting #33

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Merged
merged 7 commits into from
Feb 23, 2019
Merged

Add user-defined output formatting #33

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7e3bf7d
Add user-defined formatting
zeroeightysix Feb 20, 2019
29eaec2
Add default format to man page
zeroeightysix Feb 23, 2019
1026318
Use snake case for buffer_pos
zeroeightysix Feb 23, 2019
0bb3d0e
Style
zeroeightysix Feb 23, 2019
28393a1
Remove size limitation on format
zeroeightysix Feb 23, 2019
243bf19
Print formatted string directly
zeroeightysix Feb 23, 2019
f200d0c
Optimisations
zeroeightysix Feb 23, 2019
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40 changes: 36 additions & 4 deletions main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -411,7 +411,8 @@ static const char usage[] =
" -b #rrggbbaa Set background color.\n"
" -c #rrggbbaa Set border color.\n"
" -s #rrggbbaa Set selection color.\n"
" -w n Set border weight.\n";
" -w n Set border weight.\n"
" -f s Set output format.\n";

uint32_t parse_color(const char *color) {
if (color[0] == '#') {
Expand All @@ -431,6 +432,34 @@ uint32_t parse_color(const char *color) {
return res;
}

static void print_formatted_result(const struct slurp_box *result, const char *format) {
for (size_t i = 0; format[i] != 0; i++) {
char c = format[i];
if (c == '%') {
char next = format[i + 1];

i++; // Skip the next character (x, y, w or h)
switch (next) {
case 'x':
printf("%u", result->x);
continue;
case 'y':
printf("%u", result->y);
continue;
case 'w':
printf("%u", result->width);
continue;
case 'h':
printf("%u", result->height);
continue;
}
i--; // If no case was executed, revert i back - we don't need to skip the next character.
}
printf("%c", c);
}
printf("\n");
}

int main(int argc, char *argv[]) {
struct slurp_state state = {
.colors = {
Expand All @@ -443,7 +472,8 @@ int main(int argc, char *argv[]) {
};

int opt;
while ((opt = getopt(argc, argv, "hdb:c:s:w:")) != -1) {
char *format = "%x,%y %wx%h";
while ((opt = getopt(argc, argv, "hdb:c:s:w:f:")) != -1) {
switch (opt) {
case 'h':
printf("%s", usage);
Expand All @@ -460,6 +490,9 @@ int main(int argc, char *argv[]) {
case 's':
state.colors.selection = parse_color(optarg);
break;
case 'f':
format = optarg;
break;
case 'w': {
errno = 0;
char *endptr;
Expand Down Expand Up @@ -597,7 +630,6 @@ int main(int argc, char *argv[]) {
return EXIT_FAILURE;
}

printf("%d,%d %dx%d\n", state.result.x, state.result.y,
state.result.width, state.result.height);
print_formatted_result(&state.result, format);
return EXIT_SUCCESS;
}
17 changes: 17 additions & 0 deletions slurp.1.scd
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Expand Up @@ -34,10 +34,27 @@ select, or click to cancel the selection.
*-w* _weight_
Set border weight.

*-f* _format_
Set format. See *FORMAT* for more detail.

# COLORS

Colors may be specified in #RRGGBB or #RRGGBBAA format. The # is optional.

# FORMAT

Interpreted sequences are:

%x The x-coordinate of the selection

%y The y-coordinate of the selection

%w The width of the selection

%h The height of the selection

The default format is "%x,%y %wx%h".

# AUTHORS

Maintained by Simon Ser <[email protected]>, who is assisted by other
Expand Down