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-rw-r--r--src/zen/zen_facts.c259
-rw-r--r--src/zen/zen_facts.h29
2 files changed, 154 insertions, 134 deletions
diff --git a/src/zen/zen_facts.c b/src/zen/zen_facts.c
index f012d8e..a86e0cb 100644
--- a/src/zen/zen_facts.c
+++ b/src/zen/zen_facts.c
@@ -8,10 +8,11 @@
// We keep it low by default.
#define ZEN_PROBABILITY 10
-typedef struct {
- ZenTrigger trigger;
- const char *message;
- const char *url;
+typedef struct
+{
+ ZenTrigger trigger;
+ const char *message;
+ const char *url;
} ZenFact;
static const ZenFact facts[] = {
@@ -36,8 +37,7 @@ static const ZenFact facts[] = {
"`sizeof(*ptr)` bytes.",
NULL},
- {TRIGGER_BITWISE,
- "Use `(x & (x - 1)) == 0` to check if an integer is a power of two.",
+ {TRIGGER_BITWISE, "Use `(x & (x - 1)) == 0` to check if an integer is a power of two.",
"https://graphics.stanford.edu/~seander/bithacks.html"},
{TRIGGER_BITWISE,
"XOR swap algorithm: `x ^= y; y ^= x; x ^= y;` swaps variables without a "
@@ -45,8 +45,7 @@ static const ZenFact facts[] = {
"optimized code is usually faster).",
NULL},
- {TRIGGER_RECURSION,
- "To understand recursion, you must first understand recursion.", NULL},
+ {TRIGGER_RECURSION, "To understand recursion, you must first understand recursion.", NULL},
{TRIGGER_RECURSION,
"Tail Call Optimization (TCO) allows some recursive calls to consume no "
"additional stack "
@@ -195,8 +194,7 @@ static const ZenFact facts[] = {
"The `#` stringification operator in macros turns arguments into string "
"literals.",
NULL},
- {TRIGGER_GLOBAL,
- "The `##` token-pasting operator concatenates tokens in macro expansions.",
+ {TRIGGER_GLOBAL, "The `##` token-pasting operator concatenates tokens in macro expansions.",
NULL},
{TRIGGER_GLOBAL,
"Flexible array members: `int data[];` at struct end allows variable-size "
@@ -278,9 +276,7 @@ static const ZenFact facts[] = {
"B, which was "
"typeless.",
NULL},
- {TRIGGER_GLOBAL,
- "The name 'C' simply comes from being the successor to the B language.",
- NULL},
+ {TRIGGER_GLOBAL, "The name 'C' simply comes from being the successor to the B language.", NULL},
{TRIGGER_GLOBAL,
"Plan 9 C allows `structure.member` notation even if `member` is inside "
"an anonymous inner "
@@ -363,129 +359,152 @@ static const ZenFact facts[] = {
static int fact_count = sizeof(facts) / sizeof(ZenFact);
static int has_triggered = 0;
-void zen_init(void) {
- struct timespec ts;
- clock_gettime(CLOCK_REALTIME, &ts);
- srand(ts.tv_nsec ^ getpid());
+void zen_init(void)
+{
+ struct timespec ts;
+ clock_gettime(CLOCK_REALTIME, &ts);
+ srand(ts.tv_nsec ^ getpid());
}
// Global helper to print.
-void zzen_at(Token t, const char *msg, const char *url) {
- fprintf(stderr,
- COLOR_GREEN "zen: " COLOR_RESET COLOR_BOLD "%s" COLOR_RESET "\n",
- msg);
-
- extern char *g_current_filename;
- if (t.line > 0) {
- fprintf(stderr, COLOR_BLUE " --> " COLOR_RESET "%s:%d:%d\n",
- g_current_filename ? g_current_filename : "unknown", t.line, t.col);
- }
-
- if (t.start) {
- const char *line_start = t.start - (t.col - 1);
- const char *line_end = t.start;
- while (*line_end && '\n' != *line_end) {
- line_end++;
+void zzen_at(Token t, const char *msg, const char *url)
+{
+ fprintf(stderr, COLOR_GREEN "zen: " COLOR_RESET COLOR_BOLD "%s" COLOR_RESET "\n", msg);
+
+ extern char *g_current_filename;
+ if (t.line > 0)
+ {
+ fprintf(stderr, COLOR_BLUE " --> " COLOR_RESET "%s:%d:%d\n",
+ g_current_filename ? g_current_filename : "unknown", t.line, t.col);
}
- int line_len = line_end - line_start;
-
- fprintf(stderr, COLOR_BLUE " |\n" COLOR_RESET);
- fprintf(stderr, COLOR_BLUE "%-3d| " COLOR_RESET "%.*s\n", t.line, line_len,
- line_start);
- fprintf(stderr, COLOR_BLUE " | " COLOR_RESET);
- for (int i = 0; i < t.col - 1; i++) {
- fprintf(stderr, " ");
+
+ if (t.start)
+ {
+ const char *line_start = t.start - (t.col - 1);
+ const char *line_end = t.start;
+ while (*line_end && '\n' != *line_end)
+ {
+ line_end++;
+ }
+ int line_len = line_end - line_start;
+
+ fprintf(stderr, COLOR_BLUE " |\n" COLOR_RESET);
+ fprintf(stderr, COLOR_BLUE "%-3d| " COLOR_RESET "%.*s\n", t.line, line_len, line_start);
+ fprintf(stderr, COLOR_BLUE " | " COLOR_RESET);
+ for (int i = 0; i < t.col - 1; i++)
+ {
+ fprintf(stderr, " ");
+ }
+ fprintf(stderr, COLOR_GREEN "^ zen tip" COLOR_RESET "\n");
}
- fprintf(stderr, COLOR_GREEN "^ zen tip" COLOR_RESET "\n");
- }
- if (url) {
- fprintf(stderr, COLOR_CYAN " = read more: %s" COLOR_RESET "\n", url);
- }
+ if (url)
+ {
+ fprintf(stderr, COLOR_CYAN " = read more: %s" COLOR_RESET "\n", url);
+ }
}
-int zen_trigger_at(ZenTrigger t, Token location) {
- if (g_config.quiet) {
- return 0;
- }
-
- if (has_triggered) {
- return 0;
- }
-
- extern int g_warning_count;
- if (g_warning_count > 0) {
- return 0;
- }
-
- if ((rand() % 100) >= ZEN_PROBABILITY) {
- return 0;
- }
-
- int matches[10];
- int match_count = 0;
-
- for (int i = 0; i < fact_count; i++) {
- if (facts[i].trigger == t) {
- matches[match_count++] = i;
- if (match_count >= 10) {
- break;
- }
+int zen_trigger_at(ZenTrigger t, Token location)
+{
+ if (g_config.quiet)
+ {
+ return 0;
}
- }
- if (0 == match_count) {
- return 0;
- }
+ if (has_triggered)
+ {
+ return 0;
+ }
+
+ extern int g_warning_count;
+ if (g_warning_count > 0)
+ {
+ return 0;
+ }
- int pick = matches[rand() % match_count];
- const ZenFact *f = &facts[pick];
+ if ((rand() % 100) >= ZEN_PROBABILITY)
+ {
+ return 0;
+ }
+
+ int matches[10];
+ int match_count = 0;
+
+ for (int i = 0; i < fact_count; i++)
+ {
+ if (facts[i].trigger == t)
+ {
+ matches[match_count++] = i;
+ if (match_count >= 10)
+ {
+ break;
+ }
+ }
+ }
- zzen_at(location, f->message, f->url);
- has_triggered = 1;
- return 1;
+ if (0 == match_count)
+ {
+ return 0;
+ }
+
+ int pick = matches[rand() % match_count];
+ const ZenFact *f = &facts[pick];
+
+ zzen_at(location, f->message, f->url);
+ has_triggered = 1;
+ return 1;
}
-void zen_trigger_global(void) {
- if (g_config.quiet) {
- return;
- }
- if (!isatty(STDERR_FILENO)) {
- return;
- }
- if (has_triggered) {
- return;
- }
-
- extern int g_warning_count;
- if (g_warning_count > 0) {
- return;
- }
-
- if ((rand() % 100) >= ZEN_PROBABILITY) {
- return;
- }
-
- int matches[10];
- int match_count = 0;
-
- for (int i = 0; i < fact_count; i++) {
- if (TRIGGER_GLOBAL == facts[i].trigger) {
- matches[match_count++] = i;
- if (match_count >= 10) {
- break;
- }
+void zen_trigger_global(void)
+{
+ if (g_config.quiet)
+ {
+ return;
+ }
+ if (!isatty(STDERR_FILENO))
+ {
+ return;
+ }
+ if (has_triggered)
+ {
+ return;
+ }
+
+ extern int g_warning_count;
+ if (g_warning_count > 0)
+ {
+ return;
+ }
+
+ if ((rand() % 100) >= ZEN_PROBABILITY)
+ {
+ return;
}
- }
- if (0 == match_count) {
- return;
- }
+ int matches[10];
+ int match_count = 0;
+
+ for (int i = 0; i < fact_count; i++)
+ {
+ if (TRIGGER_GLOBAL == facts[i].trigger)
+ {
+ matches[match_count++] = i;
+ if (match_count >= 10)
+ {
+ break;
+ }
+ }
+ }
+
+ if (0 == match_count)
+ {
+ return;
+ }
- int pick = matches[rand() % match_count];
- const ZenFact *f = &facts[pick];
+ int pick = matches[rand() % match_count];
+ const ZenFact *f = &facts[pick];
- Token empty = {0};
- zzen_at(empty, f->message, f->url);
- has_triggered = 1;
+ Token empty = {0};
+ zzen_at(empty, f->message, f->url);
+ has_triggered = 1;
}
diff --git a/src/zen/zen_facts.h b/src/zen/zen_facts.h
index 18a810d..ce5b952 100644
--- a/src/zen/zen_facts.h
+++ b/src/zen/zen_facts.h
@@ -4,20 +4,21 @@
#include "../zprep.h"
-typedef enum {
- TRIGGER_GOTO,
- TRIGGER_POINTER_ARITH,
- TRIGGER_BITWISE,
- TRIGGER_RECURSION,
- TRIGGER_TERNARY,
- TRIGGER_ASM,
- TRIGGER_WHILE_TRUE,
- TRIGGER_MACRO,
- TRIGGER_VOID_PTR,
- TRIGGER_MAIN,
- TRIGGER_FORMAT_STRING,
- TRIGGER_STRUCT_PADDING,
- TRIGGER_GLOBAL
+typedef enum
+{
+ TRIGGER_GOTO,
+ TRIGGER_POINTER_ARITH,
+ TRIGGER_BITWISE,
+ TRIGGER_RECURSION,
+ TRIGGER_TERNARY,
+ TRIGGER_ASM,
+ TRIGGER_WHILE_TRUE,
+ TRIGGER_MACRO,
+ TRIGGER_VOID_PTR,
+ TRIGGER_MAIN,
+ TRIGGER_FORMAT_STRING,
+ TRIGGER_STRUCT_PADDING,
+ TRIGGER_GLOBAL
} ZenTrigger;
void zen_init(void);
generated by cgit v1.2.3 (git 2.46.0) at 2026-02-02 12:27:08 +0000