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#include "write.h"
#include "function.h"
#include "syntax.h"
static lsp_status_t write_number(lsp_mem_t *m, lsp_out_stream_t *s,
lsp_addr_t addr) {
return lsp_out_stream_write_int(s, lsp_mem_get_number(m, addr));
}
static lsp_status_t write_pair(lsp_mem_t *m, lsp_out_stream_t *s,
lsp_addr_t addr) {
lsp_status_t status = lsp_out_stream_write(s, '(');
if (status != LSP_SUCCESS)
return status;
lsp_bool_t write_space = false;
while (addr != m->nil) {
if (write_space) {
lsp_out_stream_write(s, ' ');
} else {
write_space = true;
}
lsp_addr_t first = lsp_mem_get_pair_first(m, addr);
lsp_addr_t second = lsp_mem_get_pair_second(m, addr);
status = lsp_write(m, s, first);
if (status != LSP_SUCCESS)
return status;
if (!lsp_mem_is_pair(m, second)) {
status = lsp_out_stream_write_str(s, " . ");
if (status != LSP_SUCCESS)
return status;
status = lsp_write(m, s, second);
if (status != LSP_SUCCESS)
return status;
break;
}
addr = second;
}
return lsp_out_stream_write(s, ')');
}
static lsp_status_t write_string(lsp_mem_t *m, lsp_out_stream_t *s,
lsp_addr_t addr) {
lsp_uint16_t len = lsp_mem_get_string_len(m, addr);
lsp_status_t status = lsp_out_stream_write(s, '"');
for (lsp_uint16_t i = 0; i < len; ++i) {
lsp_uint8_t c = lsp_mem_get_string_data(m, addr, i);
if (c == '"') {
status = lsp_out_stream_write(s, '\\');
if (status != LSP_SUCCESS)
return status;
}
status = lsp_out_stream_write(s, c);
if (status != LSP_SUCCESS)
return status;
}
return lsp_out_stream_write(s, '"');
}
static lsp_status_t write_symbol(lsp_mem_t *m, lsp_out_stream_t *s,
lsp_addr_t addr) {
lsp_uint16_t len = lsp_mem_get_symbol_len(m, addr);
for (lsp_uint16_t i = 0; i < len; ++i) {
lsp_uint8_t c = lsp_mem_get_symbol_name(m, addr, i);
lsp_status_t status = lsp_out_stream_write(s, c);
if (status != LSP_SUCCESS)
return status;
}
return LSP_SUCCESS;
}
static lsp_status_t write_builtin_function(lsp_mem_t *m, lsp_out_stream_t *s,
lsp_addr_t addr) {
lsp_status_t status = lsp_out_stream_write_str(s, "#<builtin-function-");
if (status != LSP_SUCCESS)
return status;
status = lsp_out_stream_write_str(
s, lsp_functions[lsp_mem_get_builtin_index(m, addr)].name);
if (status != LSP_SUCCESS)
return status;
return lsp_out_stream_write(s, '>');
}
static lsp_status_t write_builtin_syntax(lsp_mem_t *m, lsp_out_stream_t *s,
lsp_addr_t addr) {
lsp_status_t status = lsp_out_stream_write_str(s, "#<builtin-syntax-");
if (status != LSP_SUCCESS)
return status;
status = lsp_out_stream_write_str(
s, lsp_syntaxes[lsp_mem_get_builtin_index(m, addr)].name);
if (status != LSP_SUCCESS)
return status;
return lsp_out_stream_write(s, '>');
}
static lsp_status_t write_function(lsp_mem_t *m, lsp_out_stream_t *s,
lsp_addr_t addr) {
lsp_status_t status = lsp_out_stream_write_str(s, "#<function-");
if (status != LSP_SUCCESS)
return status;
status = lsp_out_stream_write_int(s, addr);
if (status != LSP_SUCCESS)
return status;
return lsp_out_stream_write(s, '>');
}
static lsp_status_t write_syntax(lsp_mem_t *m, lsp_out_stream_t *s,
lsp_addr_t addr) {
lsp_status_t status = lsp_out_stream_write_str(s, "#<syntax-");
if (status != LSP_SUCCESS)
return status;
status = lsp_out_stream_write_int(s, addr);
if (status != LSP_SUCCESS)
return status;
return lsp_out_stream_write(s, '>');
}
lsp_status_t lsp_write(lsp_mem_t *m, lsp_out_stream_t *s, lsp_addr_t addr) {
if (lsp_mem_is_number(m, addr))
return write_number(m, s, addr);
if (lsp_mem_is_pair(m, addr))
return write_pair(m, s, addr);
if (lsp_mem_is_string(m, addr))
return write_string(m, s, addr);
if (lsp_mem_is_symbol(m, addr))
return write_symbol(m, s, addr);
if (lsp_mem_is_builtin_function(m, addr))
return write_builtin_function(m, s, addr);
if (lsp_mem_is_builtin_syntax(m, addr))
return write_builtin_syntax(m, s, addr);
if (lsp_mem_is_function(m, addr))
return write_function(m, s, addr);
if (lsp_mem_is_syntax(m, addr))
return write_syntax(m, s, addr);
return LSP_ERR_WRITE;
}
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