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A couple of minor parser changes around conditions: 1) only treat #{

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specially after a condition, otherwise as a comment (which is more as
most people expect) 2) allow formats to be quoted after a condition.
This commit is contained in:
nicm 2019-06-14 12:04:11 +00:00 committed by Nicholas Marriott
parent ebc9dcb3bb
commit 0a94dbe051
2 changed files with 22 additions and 8 deletions
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26
cmd-parse.y
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@ -59,6 +59,7 @@ struct cmd_parse_state {
size_t len;
size_t off;
int condition;
int eol;
int eof;
struct cmd_parse_input *input;
@ -102,7 +103,7 @@ static void cmd_parse_free_commands(struct cmd_parse_commands *);
%token ENDIF
%token <token> FORMAT TOKEN EQUALS
%type <token> argument expanded
%type <token> argument expanded format
%type <arguments> arguments
%type <flag> if_open if_elif
%type <elif> elif elif1
@ -158,7 +159,16 @@ statement : condition
}
}
expanded : FORMAT
format : FORMAT
{
$$ = $1;
}
| TOKEN
{
$$ = $1;
}
expanded : format
{
struct cmd_parse_state *ps = &parse_state;
struct cmd_parse_input *pi = ps->input;
@ -950,12 +960,15 @@ yylex(void)
{
struct cmd_parse_state *ps = &parse_state;
char *token, *cp;
int ch, next;
int ch, next, condition;
if (ps->eol)
ps->input->line++;
ps->eol = 0;
condition = ps->condition;
ps->condition = 0;
for (;;) {
ch = yylex_getc();
@ -995,11 +1008,11 @@ yylex(void)
if (ch == '#') {
/*
* #{ opens a format; anything else is a comment,
* ignore up to the end of the line.
* #{ after a condition opens a format; anything else
* is a comment, ignore up to the end of the line.
*/
next = yylex_getc();
if (next == '{') {
if (condition && next == '{') {
yylval.token = yylex_format();
if (yylval.token == NULL)
return (ERROR);
@ -1026,6 +1039,7 @@ yylex(void)
}
if (*cp == '\0')
return (TOKEN);
ps->condition = 1;
if (strcmp(yylval.token, "%if") == 0) {
free(yylval.token);
return (IF);

4
tmux.1
View File

@ -583,9 +583,9 @@ or
.Ql %endif .
For example:
.Bd -literal -offset indent
%if #{==:#{host},myhost}
%if "#{==:#{host},myhost}"
set -g status-style bg=red
%elif #{==:#{host},myotherhost}
%elif "#{==:#{host},myotherhost}"
set -g status-style bg=green
%else
set -g status-style bg=blue