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#include "lex.h"
#include "parse.h"
#include "typeutils.h"
#include <stdlib.h>
#include <string.h>
typedef struct {
char* key;
char* val;
} StrPair;
DECLARE_VEC(StrPair, KeyValMap)
DECLARE_MAYBE(char*, MaybeStr)
void set_map_pair(KeyValMap* map, char* key, char* val) {
for (int i = 0; i < map->count; i++) {
char* key_i = get_from_KeyValMap(map, i)->key;
if (key_i == NULL) continue;
if (strcmp(key_i, key) == 0) {
// TODO: maybe copy instead
strcpy(
map->blocks[i / map->block_size][i % map->block_size].val,
val
);
break;
}
}
}
MaybeStr get_map_value(KeyValMap* map, char* key) {
for (int i = 0; i < map->count; i++) {
char* key_i = get_from_KeyValMap(map, i)->key;
if (key_i == NULL) continue;
if (strcmp(key_i, key) == 0) {
return (MaybeStr){
.some = true,
.value = get_from_KeyValMap(map, i)->val
};
}
}
return (MaybeStr){.some = false};
}
void unset_map_key(KeyValMap* map, char* key) {
for (int i = 0; i < map->count; i++) {
char* key_i = get_from_KeyValMap(map, i)->key;
if (key_i == NULL) continue;
if (strcmp(key_i, key) == 0) {
map->blocks[i / map->block_size][i % map->block_size].key = NULL;
break;
}
}
}
typedef struct {
KeyValMap aliases;
KeyValMap shell_vars;
} ShellState;
char* get_var(char* varname, ShellState* shstate) {
MaybeStr maybe_varval = get_map_value(&shstate->shell_vars, varname);
if (maybe_varval.some == true) return maybe_varval.value;
return getenv(varname);
}
typedef struct {
QuotationMode qmode;
char* content;
} ExpandedChunk;
ExpandedChunk expand_chunk(Chunk chunk, ShellState* shstate) {
char* content;
if (chunk.qmode == SINGLE_Q || chunk.kind == LITERAL) {
if (chunk.qmode == SINGLE_Q && chunk.kind != LITERAL) exit(69);
content = chunk.as.literal_str;
} else if (chunk.kind == VAR_EXP) {
content = get_var(chunk.as.varname, shstate);
} else if (chunk.kind == REGION_EXP) {
exit(7); // Not supported yet; arithm
}
return (ExpandedChunk){.qmode = chunk.qmode, .content = content};
}
DECLARE_VEC(char*, StrVec)
typedef struct {
StrVec complete_strs;
String active_str;
} WordSplittingGerm;
void add_expchunk(char* next_str, WordSplittingGerm* curr_res) {
for (int pos = 0; pos < strlen(next_str); pos++) {
if (next_str[pos] == ' ') {
push_to_StrVec(&curr_res->complete_strs, inner(&curr_res->active_str));
curr_res->active_str = make_String(256);
} else {
push_to_String(&curr_res->active_str, next_str[pos]);
}
}
}
StrVec expand_word(Word word, ShellState* state) {
WordSplittingGerm curr_res = {.complete_strs = make_StrVec(256), .active_str = make_String(25)};
for (int i = 0; i < word.count; i++) {
Chunk curr_cunk = *get_from_Word(&word, i);
ExpandedChunk curr_exp = expand_chunk(curr_cunk, state);
switch (curr_exp.qmode) {
case UN_Q:
add_expchunk(curr_exp.content, &curr_res);
break;
case SINGLE_Q:
append_str_to_String(&curr_res.active_str, curr_exp.content);
break;
case DOUBLE_Q:
append_str_to_String(&curr_res.active_str, curr_exp.content);
}
}
if (curr_res.active_str.count > 0) {
push_to_StrVec(&curr_res.complete_strs, inner(&curr_res.active_str));
}
return curr_res.complete_strs;
/*
char** res_ptr = malloc(sizeof(char*) * curr_res.complete_strs.count);
for (int j = 0; j < curr_res.complete_strs.count; j++) {
res_ptr[j] = curr_res.complete_strs.blocks[j / curr_res.complete_strs.block_size][j % curr_res.complete_strs.block_size];
}
return res_ptr;
*/
}
char** expand_token(Token token, ShellState* shstate) {
// TODO: alias expansion
// TODO: make some kind of extractor for the Vec-s that returns a regular T*-type NULL-term array
// TODO: we need to split strs on spaces
exit(1);
}
void command_thing(Command command, ShellState* shtate) {
char**
}
void run_pipeline(Pipeline pl, ShellState* shstate) {
}
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