A minimalistic programming language written in C89.
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#include "ink.h"
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#ifndef INK_SH_READ_BUFF
#define INK_SH_READ_BUFF 32768
#endif // INK_SH_READ_BUFF
#ifndef GIT_COMMIT_HASH
#define GIT_COMMIT_HASH "?"
#endif
void print_string(struct context* ctx, const struct elem string) {
int i;
const struct ink_array* name = ink_get_value(ctx, string);
for (i = 0; i < name->top; ++i) {
const struct elem a = name->elements[i];
if(a.value <= 0x7F) {
ctx->putchar(ctx, a.value);
} else if(a.value <= 0x7FF) {
ctx->putchar(ctx, ((a.value & 0xFC0) >> 6) | 192);
ctx->putchar(ctx, (a.value & 0x3F) | 128);
} else if(a.value <= 0xFFFF) {
ctx->putchar(ctx, ((a.value & 0x3F000) >> 12) | 224);
ctx->putchar(ctx, ((a.value & 0xFC0) >> 6) | 128);
ctx->putchar(ctx, (a.value & 0x3F) | 128);
} else if(a.value <= 0x10FFFF) {
ctx->putchar(ctx, ((a.value & 0x3C0000) >> 18) | 240);
ctx->putchar(ctx, ((a.value & 0x3F000) >> 12) | 128);
ctx->putchar(ctx, ((a.value & 0xFC0) >> 6) | 128);
ctx->putchar(ctx, (a.value & 0x3F) | 128);
} else {
ctx->panic = -9472;
return;
}
}
}
int get_type_by_name(struct context* ctx, const char* name);
static void print_releasever(struct context* ctx) {
const char * commit = GIT_COMMIT_HASH;
while (*commit) {
ctx->putchar(ctx, *commit++);
}
ctx->putchar(ctx, '\n');
}
static void read_stdin(struct context* ctx) {
struct elem e;
e.type = INK_INTEGER;
e.value = getchar();
ink_push(ctx, e);
}
int main(int argc, char** argv) {
char read_buffer[INK_SH_READ_BUFF];
struct context* ctx;
char** end_argv;
int interactive = 1;
ctx = ink_make_default_context();
ink_add_native(ctx, "version", print_releasever);
ink_add_native(ctx, "read-stdin", read_stdin);
end_argv = argv + argc;
size_t cnt;
int no_exit = 1;
for(argv+=1; argv != end_argv; argv++) {
if (argv+1 == end_argv && strcmp(*argv, "--") == 0) {
interactive = 0;
continue;
}
FILE* file;
file = fopen(*argv, "r");
cnt = fread(read_buffer, 1, INK_SH_READ_BUFF - 1, file);
if(cnt == 0) {
fprintf(stderr, "Can't read file !! -> %s\n", *argv);
}
read_buffer[cnt] = 0;
ink_compile(ctx, read_buffer);
if(ctx->panic) {
fprintf(stderr, "Panicked !! -> %d\n", ctx->panic);
}
while (ink_can_run(ctx)) {
ink_step_everyone(ctx);
}
fclose(file);
}
if (interactive) {
char* it = read_buffer;
do {
int line_on = 0;
int routine;
struct ink_routine* rt;
// cnt = fread(read_buffer, 1, INK_SH_READ_BUFF - 1, stdin);
fputc('%', stdout);
fputc(' ', stdout);
cnt = 0;
while(!line_on) {
int c = fgetc(stdin);
if (c == EOF) {
read_buffer[cnt] = 0;
line_on = 1;
no_exit = 0;
} else if(c == '\n'){
read_buffer[cnt] = 0;
line_on = 1;
} else {
read_buffer[cnt] = c;
++cnt;
}
}
if(cnt > 0) {
read_buffer[cnt] = 0;
routine = ink_compile(ctx, read_buffer);
if (ctx->panic) {
fprintf(stderr, "Panicked ctx !! -> %d\n", ctx->panic);
}
if (ctx->routines[routine].panic) {
fprintf(stderr, "Panicked routine !! -> %d\n", ctx->routines[routine].panic);
}
if (ctx->routines[routine].parse_error.is_set) {
fprintf(stderr, "Panicked !! -> %s\n", ctx->routines[routine].parse_error.error_message);
}
if (ctx->routines[routine].runtime_error.is_set) {
fprintf(stderr, "Panicked !! -> %s\n", ctx->routines[routine].runtime_error.error_message);
}
while (ink_can_run(ctx)) {
ink_step_everyone(ctx);
}
rt = ctx->routines + routine;
if(rt->top) {
if(rt->stack[rt->top - 1].type == INK_INTEGER) {
fprintf(stdout, "%u\n", rt->stack[rt->top - 1].value);
}
if(rt->stack[rt->top - 1].type == get_type_by_name(ctx, "array")) {
struct elem* ary_it;
int print_as_string = 1;
struct ink_array* ary = ink_get_value(ctx, rt->stack[rt->top - 1]);
for(ary_it = ary->elements; ary_it != ary->elements + ary->top; ++ary_it) {
print_as_string = print_as_string && (isprint(ary_it->value) || isspace(ary_it->value)) && (ary_it->type == INK_INTEGER);
}
if(print_as_string) {
print_string(ctx, rt->stack[rt->top - 1]);
fputc('\n', stdout);
} else {
fputc('[', stdout);
for (ary_it = ary->elements; ary_it != ary->elements + ary->top; ++ary_it) {
fprintf(stdout, "%u", ary_it->value);
if (ary_it + 1 != ary->elements + ary->top) fputc(',', stdout);
}
fputc(']', stdout);
fputc('\n', stdout);
}
}
}
}
} while(no_exit);
fputc('\n', stdout);
} else {
while (ink_can_run(ctx)) {
ink_step_everyone(ctx);
}
}
return ink_destroy(ctx);
}