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Add a way to mark environment variables as "hidden" so they can be used

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by tmux but are not passed into the environment of new panes.
This commit is contained in:
nicm
2020-03-31 17:14:40 +00:00
parent e6cddcf752
commit cc8b41f294
13 changed files with 98 additions and 33 deletions
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23
cmd-parse.y
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@ -99,6 +99,7 @@ static void cmd_parse_print_commands(struct cmd_parse_input *, u_int,
}
%token ERROR
%token HIDDEN
%token IF
%token ELSE
%token ELIF
@ -134,6 +135,11 @@ statements : statement '\n'
}
statement : /* empty */
{
$$ = xmalloc (sizeof *$$);
TAILQ_INIT($$);
}
| hidden_assignment
{
$$ = xmalloc (sizeof *$$);
TAILQ_INIT($$);
@ -204,10 +210,21 @@ assignment : EQUALS
if ((~flags & CMD_PARSE_PARSEONLY) &&
(ps->scope == NULL || ps->scope->flag))
environ_put(global_environ, $1);
environ_put(global_environ, $1, 0);
free($1);
}
hidden_assignment : HIDDEN EQUALS
{
struct cmd_parse_state *ps = &parse_state;
int flags = ps->input->flags;
if ((~flags & CMD_PARSE_PARSEONLY) &&
(ps->scope == NULL || ps->scope->flag))
environ_put(global_environ, $2, ENVIRON_HIDDEN);
free($2);
}
if_open : IF expanded
{
struct cmd_parse_state *ps = &parse_state;
@ -1079,6 +1096,10 @@ yylex(void)
if (*cp == '\0')
return (TOKEN);
ps->condition = 1;
if (strcmp(yylval.token, "%hidden") == 0) {
free(yylval.token);
return (HIDDEN);
}
if (strcmp(yylval.token, "%if") == 0) {
free(yylval.token);
return (IF);