Goodbye C compiler, hello colm compiler

6 files changed, 0 insertions, 609 deletions

diff --git a/src/fspec/ragel/lexer-expr.h b/src/fspec/ragel/lexer-expr.h
deleted file mode 100644
index 904736d..0000000
--- a/src/fspec/ragel/lexer-expr.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#pragma once
-
-#include <fspec/memory.h>
-
-#include <stdbool.h>
-
-struct fspec_expr;
-struct fspec_expr {
-   struct {
-      size_t (*read)(struct fspec_expr *lexer, void *input, const size_t size, const size_t nmemb);
-      size_t (*write)(struct fspec_expr *lexer, const void *output, const size_t size, const size_t nmemb);
-   } ops;
-
-   struct {
-      struct fspec_mem input;
-   } mem;
-};
-
-bool
-fspec_expr_parse(struct fspec_expr *lexer, const char *name);
diff --git a/src/fspec/ragel/lexer-expr.rl b/src/fspec/ragel/lexer-expr.rl
deleted file mode 100644
index 0f1f83d..0000000
--- a/src/fspec/ragel/lexer-expr.rl
+++ /dev/null
@@ -1,118 +0,0 @@
-#include "lexer-expr.h"
-#include "lexer-stack.h"
-#include "util/ragel/ragel.h"
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <assert.h>
-#include <err.h>
-
-static uint8_t
-precedence(char op)
-{
-   switch (op) {
-      case '^': return 4;
-      case '*': return 3;
-      case '/': return 3;
-      case '+': return 2;
-      case '-': return 2;
-   }
-   errx(EXIT_FAILURE, "unknown operator %c for precedence", op);
-   return 0;
-}
-
-static size_t
-pop(char cur, char *mstack, size_t open)
-{
-   static char cvar = 'a';
-
-   // 1 + 2 + 4 + 3 * 2 / 2 * 2 * 2 - 2 * 2 + 5;
-   while (open >= 3) {
-      const char last_op = mstack[open - 2];
-      const uint8_t last_prio = precedence(last_op);
-      const uint8_t new_prio = precedence(cur);
-
-      if (last_prio <= new_prio)
-         break;
-
-      printf("%c = ", cvar);
-      for (size_t i = open - 3; i < open; ++i)
-         printf("%c ", mstack[i]);
-      puts(";");
-      open -= 3;
-
-      mstack[open++] = cvar;
-      ++cvar;
-   }
-
-   return open;
-}
-
-%%{
-   machine fspec_expr;
-   include fspec_stack "lexer-stack.rl";
-   variable p ragel.p;
-   variable pe ragel.pe;
-   variable eof ragel.eof;
-   write data noerror nofinal;
-
-   action op {
-      open = pop(fc, mstack, open);
-      mstack[open++] = fc;
-   }
-
-   logical_operators = '&&' | '||' | '==' | '<' | '>' | '<=' | '>=';
-   calc_operators = '-' | '+' | '/' | '*' | '%';
-   bitwise_operators = '&' | '|' | '^' | '<<' | '>>';
-
-   main := |*
-      calc_operators => op;
-      stack_num => { mstack[open++] = fc;};
-      '(' => { };
-      ')' => { };
-      ' ';
-      ';' => {
-         printf("v = ");
-         for (size_t i = 0; i < open; ++i)
-            printf("%c ", mstack[i]);
-         puts(";");
-      };
-      *|;
-}%%
-
-
-bool
-fspec_expr_parse(struct fspec_expr *expr, const char *name)
-{
-   int cs, act;
-   const char *ts, *te;
-   (void)ts;
-
-   size_t open = 0;
-   char mstack[25];
-
-   %% write init;
-
-   (void)fspec_expr_en_main;
-   assert(expr);
-   assert(expr->ops.read);
-   assert(expr->ops.write);
-   assert(expr->mem.input.data && expr->mem.input.len);
-   assert(expr->mem.input.len <= (size_t)~0 && "input storage size exceeds size_t range");
-
-   char var[256];
-   struct stack stack = { .var.buf.mem = { .data = var, .len = sizeof(var) } };
-   struct ragel ragel = { .name = name, .lineno = 1 };
-
-   // static const fspec_num version = 0;
-
-   struct fspec_mem input = expr->mem.input;
-   for (bool eof = false; !ragel.error && !eof;) {
-      const size_t bytes = expr->ops.read(expr, input.data, 1, input.len);
-      const struct ragel_mem rl = { .data = input.data, .end = (char*)input.data + bytes };
-      ragel_feed_input(&ragel, (eof = (bytes < input.len)), &rl);
-      %% write exec;
-   }
-
-   return !ragel.error;
-}
diff --git a/src/fspec/ragel/lexer-stack.h b/src/fspec/ragel/lexer-stack.h
deleted file mode 100644
index eebf055..0000000
--- a/src/fspec/ragel/lexer-stack.h
+++ /dev/null
@@ -1,42 +0,0 @@
-#pragma once
-
-#include "util/membuf.h"
-
-#include <stdint.h>
-
-struct varbuf {
-   struct membuf buf;
-   size_t offset;
-};
-
-void
-varbuf_begin(struct varbuf *var);
-
-void
-varbuf_reset(struct varbuf *var);
-
-void
-varbuf_remove_last(struct varbuf *var);
-
-struct stack {
-   struct varbuf var;
-
-   union {
-      struct fspec_mem str;
-      uint64_t num;
-   };
-
-   enum stack_type {
-      STACK_STR,
-      STACK_NUM,
-   } type;
-};
-
-void
-stack_num(struct stack *stack, const uint8_t base);
-
-const struct fspec_mem*
-stack_get_str(const struct stack *stack);
-
-uint64_t
-stack_get_num(const struct stack *stack);
diff --git a/src/fspec/ragel/lexer-stack.rl b/src/fspec/ragel/lexer-stack.rl
deleted file mode 100644
index 940f820..0000000
--- a/src/fspec/ragel/lexer-stack.rl
+++ /dev/null
@@ -1,153 +0,0 @@
-#include "lexer-stack.h"
-
-#include <stdlib.h>
-#include <assert.h>
-#include <err.h>
-
-void
-varbuf_begin(struct varbuf *var)
-{
-   assert(var);
-   var->offset = var->buf.written;
-   assert(var->offset <= var->buf.mem.len);
-}
-
-void
-varbuf_reset(struct varbuf *var)
-{
-   assert(var);
-   var->offset = var->buf.written = 0;
-}
-
-void
-varbuf_remove_last(struct varbuf *var)
-{
-   assert(var);
-   assert(var->buf.written >= var->offset);
-   const size_t size = var->buf.written - var->offset;
-   assert(var->buf.written >= size);
-   var->buf.written -= size;
-   assert(var->buf.written <= var->buf.mem.len);
-}
-
-static void
-stack_check_type(const struct stack *stack, const enum stack_type type)
-{
-   assert(stack);
-
-   if (stack->type == type)
-      return;
-
-   const char *got = (type == STACK_STR ? "str" : "num"), *expected = (stack->type == STACK_STR ? "str" : "num");
-   errx(EXIT_FAILURE, "tried to get '%s' from stack, but the last pushed type was '%s'", got, expected);
-}
-
-void
-stack_num(struct stack *stack, const uint8_t base)
-{
-   assert(stack);
-   membuf_terminate(&stack->var.buf, (char[]){ 0 }, 1);
-   const char *str = (char*)stack->var.buf.mem.data + stack->var.offset;
-   stack->type = STACK_NUM;
-   stack->num = strtoll(str, NULL, base);
-   varbuf_remove_last(&stack->var);
-}
-
-const struct fspec_mem*
-stack_get_str(const struct stack *stack)
-{
-   stack_check_type(stack, STACK_STR);
-   return &stack->str;
-}
-
-uint64_t
-stack_get_num(const struct stack *stack)
-{
-   stack_check_type(stack, STACK_NUM);
-   return stack->num;
-}
-
-%%{
-   machine fspec_stack;
-
-   action stack_oct {
-      stack_num(&stack, 8);
-   }
-
-   action stack_hex {
-      stack_num(&stack, 16);
-   }
-
-   action stack_dec {
-      stack_num(&stack, 10);
-   }
-
-   action stack_str {
-      membuf_terminate(&stack.var.buf, (char[]){ 0 }, 1);
-      stack.type = STACK_STR;
-      stack.str = stack.var.buf.mem;
-      stack.str.len = stack.var.buf.written;
-   }
-
-   action store_esc_num {
-      const fspec_num v = stack_get_num(&stack);
-      assert(v <= 255);
-      membuf_append(&stack.var.buf, (uint8_t[]){ v }, sizeof(uint8_t));
-   }
-
-   action store_esc {
-      const struct { const char e, v; } map[] = {
-         { .e = 'a', .v = '\a' },
-         { .e = 'b', .v = '\b' },
-         { .e = 'f', .v = '\f' },
-         { .e = 'n', .v = '\n' },
-         { .e = 'r', .v = '\r' },
-         { .e = 't', .v = '\t' },
-         { .e = 'v', .v = '\v' },
-         { .e = '\\', .v = '\\' },
-         { .e = '\'', .v = '\'' },
-         { .e = '\"', .v = '"' },
-         { .e = 'e', .v = 0x1B },
-      };
-
-      for (size_t i = 0; i < sizeof(map) / sizeof(map[0]); ++i) {
-         if (fc != map[i].e)
-            continue;
-
-         membuf_append(&stack.var.buf, &map[i].v, sizeof(map[i].v));
-         break;
-      }
-   }
-
-   action store {
-      membuf_append(&stack.var.buf, fpc, 1);
-   }
-
-   action begin_num {
-      varbuf_begin(&stack.var);
-   }
-
-   action begin_str {
-      varbuf_reset(&stack.var);
-   }
-
-   # Semantic
-   quote = ['"];
-   esc = [abfnrtv\\'"e];
-   esc_chr = '\\';
-   esc_hex = 'x' <: xdigit{2};
-   hex = '0x' <: xdigit{1,};
-   oct = [0-7]{1,3};
-   dec = [\-+]? <: (([1-9] <: digit*) | '0');
-   name = ((alpha | '_') <: (alnum | '_')*);
-
-   # Stack
-   stack_name = name >begin_str $store %stack_str;
-   stack_hex = hex >begin_num $store %stack_hex;
-   stack_dec = dec >begin_num $store %stack_dec;
-   stack_oct = oct >begin_num $store %stack_oct;
-   stack_esc_hex = esc_hex >begin_num <>*store %stack_hex;
-   stack_esc = esc_chr <: ((stack_esc_hex | stack_oct) %store_esc_num | esc %~store_esc);
-   stack_str = quote <: ((stack_esc? <: print? $store) - zlen)* >begin_str %stack_str :>> quote;
-   stack_num = stack_dec | stack_hex;
-}%%
diff --git a/src/fspec/ragel/lexer.rl b/src/fspec/ragel/lexer.rl
deleted file mode 100644
index 8354bc0..0000000
--- a/src/fspec/ragel/lexer.rl
+++ /dev/null
@@ -1,180 +0,0 @@
-#include <fspec/lexer.h>
-#include <fspec/bcode.h>
-#include "lexer-stack.h"
-#include "util/ragel/ragel.h"
-#include "fspec/private/bcode-types.h"
-
-#include <assert.h>
-
-%%{
-   machine fspec_lexer;
-   include fspec_stack "lexer-stack.rl";
-   variable p ragel.p;
-   variable pe ragel.pe;
-   variable eof ragel.eof;
-   write data noerror nofinal;
-
-   action arg_eof {
-      // codebuf_append_arg(&state.out, FSPEC_ARG_EOF, NULL);
-   }
-
-   action arg_num {
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ stack_get_num(&state.stack) });
-   }
-
-   action arg_str {
-      // const struct fspec_mem *str = stack_get_str(&state.stack);
-      // codebuf_append_arg_cstr(&state.out, str->data, str->len);
-   }
-
-   action arg_var {
-      // state_append_arg_var(&state, true, stack_get_str(&state.stack));
-   }
-
-   action filter {
-      // codebuf_append_op(&state.out, FSPEC_OP_FILTER);
-   }
-
-   action goto {
-      // codebuf_append_op(&state.out, FSPEC_OP_GOTO);
-      // state_append_arg_var(&state, false, stack_get_str(&state.stack));
-   }
-
-   action vnul {
-      // codebuf_append_op(&state.out, FSPEC_OP_VISUAL);
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ FSPEC_VISUAL_NUL });
-   }
-
-   action vdec {
-      // codebuf_append_op(&state.out, FSPEC_OP_VISUAL);
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ FSPEC_VISUAL_DEC });
-   }
-
-   action vhex {
-      // codebuf_append_op(&state.out, FSPEC_OP_VISUAL);
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ FSPEC_VISUAL_HEX });
-   }
-
-   action vstr {
-      // codebuf_append_op(&state.out, FSPEC_OP_VISUAL);
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ FSPEC_VISUAL_STR });
-   }
-
-   action r8 {
-      // codebuf_append_op(&state.out, FSPEC_OP_READ);
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ 8 });
-   }
-
-   action r16 {
-      // codebuf_append_op(&state.out, FSPEC_OP_READ);
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ 16 });
-   }
-
-   action r32 {
-      // codebuf_append_op(&state.out, FSPEC_OP_READ);
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ 32 });
-   }
-
-   action r64 {
-      // codebuf_append_op(&state.out, FSPEC_OP_READ);
-      // codebuf_append_arg(&state.out, FSPEC_ARG_NUM, (fspec_num[]){ 64 });
-   }
-
-   action enum_member_end {
-   }
-
-   action enum_member_start {
-   }
-
-   action enum_end {
-   }
-
-   action enum_start {
-   }
-
-   action struct_member_end {
-      // state_finish_declaration(&state, FSPEC_DECLARATION_MEMBER);
-   }
-
-   action struct_member_start {
-      // state_append_declaration(&state, FSPEC_DECLARATION_MEMBER, stack_get_str(&state.stack));
-   }
-
-   action struct_end {
-      // state_finish_declaration(&state, FSPEC_DECLARATION_STRUCT);
-   }
-
-   action struct_start {
-      // state_append_declaration(&state, FSPEC_DECLARATION_STRUCT, stack_get_str(&state.stack));
-   }
-
-   action type_err {
-      ragel_throw_error(&ragel, "unknown type name");
-   }
-
-   action visual_err {
-      ragel_throw_error(&ragel, "unknown visualization");
-   }
-
-   action syntax_err {
-      ragel_throw_error(&ragel, "malformed input (machine failed here or in next expression)");
-   }
-
-   action line {
-      ragel_advance_line(&ragel);
-   }
-
-   # Semantic
-   newline = '\n';
-   valid = ^cntrl;
-   comment = '//' <: valid* :>> newline;
-   type = ('u8' | 's8') %r8 | ('u16' | 's16') %r16 | ('u32' | 's32') %r32 | ('u64' | 's64') %r64;
-   visual = 'nul' %vnul | 'dec' %vdec | 'hex' %vhex | 'str' %vstr;
-
-   # Catchers
-   catch_const_expr = stack_num %arg_num;
-   catch_struct = 'struct ' <: stack_name;
-   catch_enum = 'enum ' <: stack_name;
-   catch_type = (catch_struct %goto | type) $!type_err;
-   catch_args = stack_num %arg_num | stack_str %arg_str | stack_name %arg_var;
-   catch_array = '[' <: (catch_args | '$' %arg_eof) :>> ']';
-   catch_filter = ' | ' %filter <: stack_name %arg_str :>> ('(' <: catch_args? <: (', ' <: catch_args)* :>> ')')?;
-   catch_visual = ' ' <: visual $!visual_err;
-
-   # Abstract
-   struct_member = stack_name %struct_member_start :>> ': ' <: (catch_type <: catch_array* catch_filter* catch_visual?) :>> ';' %struct_member_end;
-   struct = catch_struct %struct_start :>> ' {' <: (space | comment | struct_member)* :>> '};' %struct_end;
-   enum_member = stack_name %enum_member_start :>> (': ' <: catch_const_expr)? :>> ';' %enum_member_end;
-   enum = catch_enum %enum_start :>> ' {' <: (space | comment | enum_member)* :>> '};' %enum_end;
-   line = valid* :>> newline %line;
-   main := ((space | comment | enum | struct)* & line*) $!syntax_err;
-}%%
-
-bool
-fspec_lexer_parse(struct fspec_lexer *lexer, const char *name)
-{
-   int cs;
-   %% write init;
-
-   (void)fspec_lexer_en_main;
-   assert(lexer);
-   assert(lexer->ops.read);
-   assert(lexer->mem.input.data && lexer->mem.input.len);
-   assert(lexer->mem.input.len <= (size_t)~0 && "input storage size exceeds size_t range");
-
-   char var[256];
-   struct stack stack = { .var.buf.mem = { .data = var, .len = sizeof(var) } };
-   struct ragel ragel = { .name = name, .lineno = 1 };
-
-   // static const fspec_num version = 0;
-
-   struct fspec_mem input = lexer->mem.input;
-   for (bool eof = false; !ragel.error && !eof;) {
-      const size_t bytes = lexer->ops.read(lexer, input.data, 1, input.len);
-      const struct ragel_mem rl = { .data = input.data, .end = (char*)input.data + bytes };
-      ragel_feed_input(&ragel, (eof = (bytes < input.len)), &rl);
-      %% write exec;
-   }
-
-   return !ragel.error;
-}
diff --git a/src/fspec/ragel/validator.rl b/src/fspec/ragel/validator.rl
deleted file mode 100644
index 90ead21..0000000
--- a/src/fspec/ragel/validator.rl
+++ /dev/null
@@ -1,96 +0,0 @@
-#include <fspec/bcode.h>
-#include <fspec/validator.h>
-#include "util/ragel/ragel.h"
-#include "fspec/private/bcode-types.h"
-
-#include <assert.h>
-
-struct stack {
-   union {
-      fspec_num num;
-      fspec_off off;
-      fspec_var var;
-      fspec_strsz strsz;
-      unsigned char b[sizeof(fspec_num)];
-   } u;
-   uint8_t i; // writing index for u.b
-};
-
-struct state {
-   struct ragel ragel;
-   struct stack stack;
-};
-
-%%{
-   machine fspec_validator;
-   variable p state.ragel.p;
-   variable pe state.ragel.pe;
-   variable eof state.ragel.eof;
-   write data noerror nofinal;
-
-#   BLT_HEADER = 0;
-#   BLT_ADD = 1;
-#   BLT_SUB = 2;
-#   BLT_MUL = 3;
-#   BLT_DIV = 4;
-#   BLT_MOD = 5;
-#   BLT_BIT_AND = 6;
-#   BLT_BIT_OR = 7;
-#   BLT_BIT_XOR = 8;
-#   BLT_BIT_LEFT = 9;
-#   BLT_BIT_RIGHT = 10;
-#   BLT_DECLARE = 11;
-#   BLT_READ = 12;
-#   BLT_GOTO = 13;
-#   BLT_FILTER = 14;
-#   BLT_VISUAL = 15;
-#
-#   builtins = BLT_HEADER |
-#              BLT_ADD | BLT_SUB | BLT_MUL | BLT_DIV | BLT_MOD |
-#              BLT_BIT_AND | BLT_BIT_OR | BLT_BIT_XOR | BLT_BIT_LEFT | BLT_BIT_RIGHT
-#              BLT_DECLARE | BLT_READ | BLT_GOTO | BLT_FILTER | BLT_VISUAL;
-#
-#   OP_ARG = 0;
-#   OP_REF = 1;
-#   OP_BLT = 2 OP_ARG builtins;
-#   OP_FUN = 3;
-#
-#   arg_ops = OP_REF | OP_FUN | OP_BUILTIN OP_FUN
-#
-#   BLT_DECLARE = OP_BUILTIN 10 OP_ARG 2 OP_REF OP_REF;
-#   BLT_READ = OP_BUILTIN 11 OP_ARG 1..255 OP_REF (arg_ops)*;
-#
-#   pattern = ((BLT_READ | BLT_GOTO) BLT_FILTER* BLT_VISUAL?)* $!pattern_error;
-#   main := (BLT_HEADER <: BLT_DECLARE* <: pattern) %check_decls $advance $!syntax_error;
-   main := any*;
-}%%
-
-bool
-fspec_validator_parse(struct fspec_validator *validator, const char *name)
-{
-   int cs;
-   %% write init;
-
-   (void)fspec_validator_en_main;
-   assert(validator);
-   assert(validator->ops.read);
-   assert(validator->mem.input.data && validator->mem.input.len);
-   assert(validator->mem.input.len <= (size_t)~0 && "input storage size exceeds size_t range");
-
-   struct state state = {
-      .ragel.name = name,
-      .ragel.lineno = 1,
-   };
-
-   static_assert(sizeof(state.stack.u) == sizeof(state.stack.u.b), "bytes doesn't represent the largest member in union");
-
-   struct fspec_mem input = validator->mem.input;
-   for (bool eof = false; !state.ragel.error && !eof;) {
-      const size_t bytes = validator->ops.read(validator, input.data, 1, input.len);
-      const struct ragel_mem rl = { .data = input.data, .end = (char*)input.data + bytes, .binary = true };
-      ragel_feed_input(&state.ragel, (eof = (bytes < input.len)), &rl);
-      %% write exec;
-   }
-
-   return !state.ragel.error;
-}