restructure dir, create makefile

1 files changed, 0 insertions, 185 deletions

diff --git a/lexparse.c b/lexparse.c
deleted file mode 100644
index 0ea86df..0000000
--- a/lexparse.c
+++ /dev/null
@@ -1,185 +0,0 @@
-#include <ctype.h>
-#include "syntax.h"
-#include "utils.h"
-
-typedef struct {
-    Word word_germ;
-    String lit_germ;
-} LexingBuffer;
-
-typedef struct {
-    TokenVec* token_pool;
-    TokenPtrVec* top_tokens;
-} PseudoAst;
-
-static void consolidate_buffer(LexingBuffer* buf, PseudoAst ps_ast) {
-    if (buf->lit_germ.count > 0) {
-        push_to_Word(&buf->word_germ, (Chunk){
-            .qmode = UN_Q,
-            .kind = CHUNK_LIT,
-            .as.lit_str = inner(&buf->lit_germ)
-        });
-        buf->lit_germ = make_String(256);
-    }
-    if (buf->word_germ.count > 0) {
-        Token* tok_ptr = push_to_TokenVec(ps_ast.token_pool, (Token){
-            .kind = TOK_WORD,
-            .as.word = buf->word_germ
-        });
-        push_to_TokenPtrVec(ps_ast.top_tokens, tok_ptr);
-    }
-}
-
-
-static Chunk collect_un_q_literal(char* line, size_t* pos) {
-    String buf = make_String(256);
-    size_t i;
-    for (i = *pos; line[*pos] != '$' && line[*pos] != '\0' && line[*pos] == ' '; i++) {
-        push_to_String(&buf, line[*pos]);
-    }
-    *pos = i;
-    return (Chunk){
-        .qmode = UN_Q,
-        .kind = CHUNK_LIT,
-        .as.lit_str = inner(&buf),
-    };
-}
-
-
-static Chunk collect_single_q_section(char* line, size_t* pos) {
-    (*pos)++;
-    String buf = make_String(256);
-    size_t i;
-    for (i = *pos; line[*pos] != '\'' && line[*pos] != '\0'; i++) {
-        push_to_String(&buf, line[*pos]);
-    }
-    if (line[i] == '\0') exit(44);
-
-    *pos = ++i;
-    return (Chunk){
-        .qmode = SINGLE_Q,
-        .kind = CHUNK_LIT,
-        .as.lit_str = inner(&buf)
-    };
-}
-
-static Chunk collect_double_q_section(char* line, size_t* pos) {
-    // TODO: add the extra double-q expansions
-    (*pos)++;
-    String buf = make_String(256);
-    size_t i;
-    for (i = *pos; line[*pos] != '\'' && line[*pos] != '\0'; i++) {
-        push_to_String(&buf, line[*pos]);
-    }
-    if (line[i] == '\0') exit(44);
-
-    *pos = ++i;
-    return (Chunk){
-        .qmode = DOUBLE_Q,
-        .kind = CHUNK_LIT,
-        .as.lit_str = inner(&buf)
-    };
-}
-
-DECLARE_MAYBE(SpecialToken, MaybeSpecialToken)
-
-
-static MaybeSpecialToken recognize_spec_token(char* line, size_t* pos) {
-    // TODO: add more error guards for peekaheads
-    char next_ch;
-
-    switch (line[*pos]) {
-        case '|':
-            (*pos)++;
-            return (MaybeSpecialToken){.some = true, .value = SPEC_PIPE};
-        case '>':
-            next_ch = line[(*pos)+1];
-            switch (next_ch) {
-                case '(':
-                    return (MaybeSpecialToken){.some = false};
-                case '>':
-                    *pos += 2;
-                    return (MaybeSpecialToken){.some = true, .value = SPEC_REDIR_W_APPEND};
-                default:
-                    (*pos)++;
-                    return (MaybeSpecialToken){.some = true, .value = SPEC_REDIR_W_TRUNC};
-            }
-        case '<':
-            next_ch = line[(*pos)+1];
-            if (line[(*pos)+1] == '(') {
-                return (MaybeSpecialToken){.some = false};
-            } else {
-                (*pos)++;
-                return (MaybeSpecialToken){.some = true, .value = SPEC_REDIR_R};
-            }
-        default:
-            return (MaybeSpecialToken){.some = false};
-    }
-}
-
-static void lex_level(char* line, size_t* pos, char until, PseudoAst ps_ast) {
-    LexingBuffer buf = {.word_germ = make_Word(256), .lit_germ = make_String(256)};
-    while (line[*pos] != until) {
-        if (line[*pos] == ' ') {
-            consolidate_buffer(&buf, ps_ast);
-            while (line[*pos] == ' ') (*pos)++;
-            continue;
-        }
-        MaybeSpecialToken m_spec = recognize_spec_token(line, pos);
-        if (m_spec.some) {
-            Token* tok_ptr = push_to_TokenVec(ps_ast.token_pool, (Token){
-                .kind = TOK_SPEC, 
-                .as.spec = m_spec.value
-            });
-            push_to_TokenPtrVec(ps_ast.top_tokens, tok_ptr);
-            continue;
-        }
-
-        if (line[*pos] == '\'') {
-            Chunk chunk = collect_single_q_section(line, pos);
-            push_to_Word(&buf.word_germ, chunk);
-        } else if (line[*pos] == '\"') {
-            Chunk chunk = collect_double_q_section(line, pos);
-            push_to_Word(&buf.word_germ, chunk);
-        } else if (line[*pos] == '<' && line[(*pos)+1] == '(') {
-            *pos += 2;
-            consolidate_buffer(&buf, ps_ast);
-            TokenPtrVec procsub_toks = make_TokenPtrVec(256);
-            lex_level(line, pos, ')', (PseudoAst){
-                .token_pool = ps_ast.token_pool,
-                .top_tokens = &procsub_toks
-            });
-            (*pos)++;   // consume ')'
-            Token* tok_ptr = push_to_TokenVec(ps_ast.token_pool, (Token){
-                .kind = TOK_SUB_IN,
-                .as.procsub_toks = procsub_toks,
-            });
-            push_to_TokenPtrVec(ps_ast.top_tokens, tok_ptr);
-        } else if (line[*pos] == '>' && line[(*pos)+1] == '(') {
-            *pos += 2;
-            consolidate_buffer(&buf, ps_ast);
-            TokenPtrVec procsub_toks = make_TokenPtrVec(256);
-            lex_level(line, pos, ')', (PseudoAst){
-                .token_pool = ps_ast.token_pool,
-                .top_tokens = &procsub_toks
-            });
-            (*pos)++;   // consume ')'
-            Token* tok_ptr = push_to_TokenVec(ps_ast.token_pool, (Token){
-                .kind = TOK_SUB_OUT,
-                .as.procsub_toks = procsub_toks,
-            });
-            push_to_TokenPtrVec(ps_ast.top_tokens, tok_ptr);
-        }
-    }
-}
-
-Ast lex(char* input) {
-    size_t line_pos = 0;
-    TokenVec token_pool = make_TokenVec(256);
-    TokenPtrVec top_tokens = make_TokenPtrVec(256);
-    lex_level(input, &line_pos, '\0', (PseudoAst){
-        .token_pool = &token_pool, 
-        .top_tokens = &top_tokens
-    });
-    return (Ast){.token_pool = token_pool, .top_tokens = top_tokens};
-}