Remove rpn.c

1 files changed, 0 insertions, 150 deletions

diff --git a/.bin/rpn.c b/.bin/rpn.c
deleted file mode 100755
index 1d3bdaea..00000000
--- a/.bin/rpn.c
+++ /dev/null
@@ -1,150 +0,0 @@
-#if 0
-exec cc -Wall -Wextra $@ -ledit -o $(dirname $0)/rpn $0
-#endif
-
-#include <assert.h>
-#include <err.h>
-#include <histedit.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sysexits.h>
-
-static char *fmt(int radix, long val) {
-    static char buf[65];
-    if (radix == 2) {
-        unsigned long u = val;
-        int i = sizeof(buf);
-        do {
-            buf[--i] = '0' + (u & 1);
-        } while (u >>= 1);
-        return &buf[i];
-    } else if (radix == 8) {
-        snprintf(buf, sizeof(buf), "%lo", val);
-    } else if (radix == 10) {
-        snprintf(buf, sizeof(buf), "%ld", val);
-    } else if (radix == 16) {
-        snprintf(buf, sizeof(buf), "%lx", val);
-    } else abort();
-    return buf;
-}
-
-static struct {
-    long data[1024];
-    size_t len;
-    int radix;
-    char op;
-} stack = { .radix = 10 };
-
-static void push(long val) {
-    stack.data[stack.len++] = val;
-    assert(stack.len < sizeof(stack.data));
-}
-
-static long pop(void) {
-    if (stack.len == 0) return 0;
-    return stack.data[--stack.len];
-}
-
-static bool stack_op(char op) {
-    if (stack.op == '@') {
-        stack.op = 0;
-        while (stack.len > 1)
-            stack_op(op);
-        return true;
-    }
-    if (stack.op == '\'') {
-        stack.op = 0;
-        push(op);
-        return true;
-    }
-    if (stack.op == '"') {
-        if (op == '"') stack.op = 0;
-        else push(op);
-        return true;
-    }
-
-    long a, b;
-    switch (op) {
-        case '@': case '\'': case '"': stack.op = op;
-        break; case 'b': stack.radix = 2;
-        break; case 'o': stack.radix = 8;
-        break; case 'd': stack.radix = 10;
-        break; case 'x': stack.radix = 16;
-        break; case ';': a = pop();
-        break; case ':': a = pop(); push(a); push(a);
-        break; case '\\': a = pop(); b = pop(); push(a); push(b);
-        break; case '_': a = pop(); push(-a);
-        break; case '+': a = pop(); push(pop() + a);
-        break; case '-': a = pop(); push(pop() - a);
-        break; case '*': a = pop(); push(pop() * a);
-        break; case '/': a = pop(); push(pop() / a);
-        break; case '%': a = pop(); push(pop() % a);
-        break; case '!': a = pop(); push(!a);
-        break; case '~': a = pop(); push(~a);
-        break; case '&': a = pop(); push(pop() & a);
-        break; case '|': a = pop(); push(pop() | a);
-        break; case '^': a = pop(); push(pop() ^ a);
-        break; case '<': a = pop(); push((unsigned long) pop() << a);
-        break; case '>': a = pop(); push((unsigned long) pop() >> a);
-        break; case '.': a = pop(); printf("%s\n", fmt(stack.radix, a));
-        break; case ',': a = pop(); printf("%c\n", (char) a);
-        break; case ' ':
-        break; default: return false;
-    }
-    return true;
-}
-
-static void process(const char *input) {
-    while (*input) {
-        if (stack_op(*input)) {
-            input++;
-        } else {
-            char *rest;
-            long val = strtol(input, &rest, stack.radix);
-            if (rest != input) {
-                input = rest;
-                push(val);
-            } else input++;
-        }
-    }
-}
-
-static char *prompt(EditLine *el __attribute((unused))) {
-    static char p[4096];
-    if (stack.len == 0) return "[] ";
-
-    size_t q = 0;
-    for (size_t i = 0; i < stack.len; ++i) {
-        q += (size_t) snprintf(&p[q], sizeof(p) - 2 - q, " %s", fmt(stack.radix, stack.data[i]));
-    }
-    p[0] = '[';
-    p[q] = ']';
-    p[++q] = ' ';
-    p[++q] = 0;
-
-    return p;
-}
-
-int main(int argc, char *argv[]) {
-    if (argc > 1) {
-        for (int i = 1; i < argc; ++i)
-            process(argv[i]);
-        return EX_OK;
-    }
-
-    EditLine *el = el_init(argv[0], stdin, stdout, stderr);
-    el_set(el, EL_PROMPT, prompt);
-    el_set(el, EL_SIGNAL, true);
-
-    for (;;) {
-        int count;
-        const char *line = el_gets(el, &count);
-        if (count < 0) err(EX_IOERR, "el_gets");
-        if (!line) break;
-        process(line);
-    }
-
-    el_end(el);
-    return EX_OK;
-}