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authorTavian Barnes <tavianator@tavianator.com>2017-09-06 22:22:57 -0400
committerTavian Barnes <tavianator@tavianator.com>2017-09-06 22:22:57 -0400
commitc3dcb94d52ea36bc1cefa2ccd4a7f305ba4df889 (patch)
tree452af9fbe59dd1d9e2e0e55f0dc5bb1ad20be349 /parse.c
parent80eec18020f531abbdb2abbb919ab6c6fa34107c (diff)
downloadbfs-c3dcb94d52ea36bc1cefa2ccd4a7f305ba4df889.tar.xz
parse: Factor out common initialization code for -print and friends
Diffstat (limited to 'parse.c')
-rw-r--r--parse.c65
1 files changed, 30 insertions, 35 deletions
diff --git a/parse.c b/parse.c
index 08d450c..811ec5a 100644
--- a/parse.c
+++ b/parse.c
@@ -360,6 +360,29 @@ static void debug_opt(const struct parser_state *state, const char *format, ...)
}
/**
+ * Fill in a "-print"-type expression.
+ */
+static void init_print_expr(struct parser_state *state, struct expr *expr) {
+ expr_set_always_true(expr);
+ expr->cost = PRINT_COST;
+ expr->cfile = state->cmdline->cout;
+}
+
+/**
+ * Open a file for an expression.
+ */
+static int expr_open(struct parser_state *state, struct expr *expr, const char *path) {
+ expr->cfile = cfopen(path, state->use_color ? state->cmdline->colors : NULL);
+ if (!expr->cfile) {
+ cfprintf(state->cmdline->cerr, "%{er}error: '%s': %s%{rs}\n", path, strerror(errno));
+ return -1;
+ }
+
+ ++state->cmdline->nopen_files;
+ return 0;
+}
+
+/**
* Invoke stat() on an argument.
*/
static int stat_arg(const struct parser_state *state, struct expr *expr, struct stat *sb) {
@@ -1058,20 +1081,6 @@ static struct expr *parse_f(struct parser_state *state, int arg1, int arg2) {
}
/**
- * Open a file for an expression.
- */
-static int expr_open(struct parser_state *state, struct expr *expr, const char *path) {
- expr->cfile = cfopen(path, state->use_color ? state->cmdline->colors : NULL);
- if (!expr->cfile) {
- cfprintf(state->cmdline->cerr, "%{er}error: '%s': %s%{rs}\n", path, strerror(errno));
- return -1;
- }
-
- ++state->cmdline->nopen_files;
- return 0;
-}
-
-/**
* Parse -fls FILE.
*/
static struct expr *parse_fls(struct parser_state *state, int arg1, int arg2) {
@@ -1318,9 +1327,7 @@ static struct expr *parse_links(struct parser_state *state, int arg1, int arg2)
static struct expr *parse_ls(struct parser_state *state, int arg1, int arg2) {
struct expr *expr = parse_nullary_action(state, eval_fls);
if (expr) {
- expr_set_always_true(expr);
- expr->cost = PRINT_COST;
- expr->cfile = state->cmdline->cout;
+ init_print_expr(state, expr);
expr->reftime = state->now;
}
return expr;
@@ -1766,13 +1773,9 @@ fail:
*/
static struct expr *parse_print(struct parser_state *state, int arg1, int arg2) {
struct expr *expr = parse_nullary_action(state, eval_fprint);
- if (!expr) {
- return NULL;
+ if (expr) {
+ init_print_expr(state, expr);
}
-
- expr_set_always_true(expr);
- expr->cost = PRINT_COST;
- expr->cfile = state->cmdline->cout;
return expr;
}
@@ -1782,9 +1785,7 @@ static struct expr *parse_print(struct parser_state *state, int arg1, int arg2)
static struct expr *parse_print0(struct parser_state *state, int arg1, int arg2) {
struct expr *expr = parse_nullary_action(state, eval_fprint0);
if (expr) {
- expr_set_always_true(expr);
- expr->cost = PRINT_COST;
- expr->cfile = state->cmdline->cout;
+ init_print_expr(state, expr);
}
return expr;
}
@@ -1798,11 +1799,7 @@ static struct expr *parse_printf(struct parser_state *state, int arg1, int arg2)
return NULL;
}
- expr_set_always_true(expr);
-
- expr->cost = PRINT_COST;
-
- expr->cfile = state->cmdline->cout;
+ init_print_expr(state, expr);
expr->printf = parse_bfs_printf(expr->sdata, state->cmdline);
if (!expr->printf) {
@@ -1819,9 +1816,7 @@ static struct expr *parse_printf(struct parser_state *state, int arg1, int arg2)
static struct expr *parse_printx(struct parser_state *state, int arg1, int arg2) {
struct expr *expr = parse_nullary_action(state, eval_fprintx);
if (expr) {
- expr_set_always_true(expr);
- expr->cost = PRINT_COST;
- expr->cfile = state->cmdline->cout;
+ init_print_expr(state, expr);
}
return expr;
}
@@ -3031,7 +3026,7 @@ static struct expr *parse_whole_expr(struct parser_state *state) {
if (!print) {
goto fail;
}
- print->cfile = state->cmdline->cout;
+ init_print_expr(state, print);
expr = new_and_expr(state, expr, print, &fake_and_arg);
if (!expr) {