-
Notifications
You must be signed in to change notification settings - Fork 15
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
paste mode: initial commit, no tests
- Loading branch information
Showing
3 changed files
with
173 additions
and
3 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| /* | ||
| * Copyright (C) 2021 Liquidaty and the zsv/lib contributors | ||
| * All rights reserved | ||
| * | ||
| * This file is part of zsv/lib, distributed under the license defined at | ||
| * https://opensource.org/licenses/MIT | ||
| */ | ||
|
|
||
| #include <stdio.h> | ||
| #include <string.h> | ||
| #include <stdlib.h> | ||
| #include <zsv/utils/writer.h> | ||
|
|
||
| #define ZSV_COMMAND paste | ||
| #include "zsv_command.h" | ||
|
|
||
| static int zsv_paste_usage() { | ||
| static const char *usage = | ||
| "Usage: paste <filename> [<filename> ...]\n" | ||
| "\n" | ||
| "Options:\n" | ||
| " -h, --help : show usage\n"; | ||
| printf("%s\n", usage); | ||
| return 1; | ||
| } | ||
|
|
||
| struct zsv_paste_input_file { | ||
| struct zsv_paste_input_file *next; | ||
| const char *fname; | ||
| struct zsv_opts opts; | ||
| FILE *f; | ||
| unsigned col_count; | ||
| zsv_parser parser; | ||
| enum zsv_status zsv_status; // parser status | ||
| }; | ||
|
|
||
| enum zsv_paste_status { | ||
| zsv_paste_status_ok = 0, | ||
| zsv_paste_status_file, | ||
| zsv_paste_status_memory, | ||
| zsv_paste_status_error | ||
| }; | ||
|
|
||
| // zsv_paste_load_row: return number of inputs that a row was retrieved from | ||
| static int zsv_paste_load_row(struct zsv_paste_input_file *inputs) { | ||
| int have_row = 0; | ||
| for(struct zsv_paste_input_file *pf = inputs; pf; pf = pf->next) { | ||
| if(pf->zsv_status == zsv_status_row) { | ||
| pf->zsv_status = zsv_next_row(pf->parser); | ||
| if(pf->zsv_status == zsv_status_row) | ||
| have_row++; | ||
| } | ||
| } | ||
| return have_row; | ||
| } | ||
|
|
||
| static void zsv_paste_print_row(zsv_csv_writer w, struct zsv_paste_input_file *inputs) { | ||
| char first = 1; | ||
| for(struct zsv_paste_input_file *pf = inputs; pf; pf = pf->next) { | ||
| unsigned int j = zsv_cell_count(pf->parser); | ||
| unsigned int k = pf->col_count; | ||
| for(unsigned int i = 0; i < j && i < k; i++) { | ||
| struct zsv_cell cell = zsv_get_cell(pf->parser, i); | ||
| zsv_writer_cell(w, first, cell.str, cell.len, cell.quoted); | ||
| first = 0; | ||
| } | ||
| for(unsigned int i = j; i < k; i++) | ||
| zsv_writer_cell(w, first, (const unsigned char *)"", 0, 0); | ||
| } | ||
| } | ||
|
|
||
| static void zsv_paste_delete_input(struct zsv_paste_input_file *pf) { | ||
| if(pf->parser) | ||
| zsv_delete(pf->parser); | ||
| if(pf->opts.stream) | ||
| fclose(pf->opts.stream); | ||
| free(pf); | ||
| } | ||
|
|
||
| // zsv_paste_add_input(): return error | ||
| static enum zsv_paste_status zsv_paste_add_input( | ||
| const char *fname, | ||
| struct zsv_paste_input_file **next, | ||
| struct zsv_paste_input_file ***next_next, | ||
| struct zsv_opts *opts, | ||
| const char *opts_used | ||
| ) { | ||
| FILE *f = fopen(fname, "rb"); | ||
| if(!f) { | ||
| perror(fname); | ||
| return zsv_paste_status_file; | ||
| } | ||
| struct zsv_paste_input_file *pf = calloc(1, sizeof(*pf)); | ||
| if(!pf) { | ||
| fclose(f); | ||
| return zsv_paste_status_memory; | ||
| } | ||
|
|
||
| pf->opts = *opts; | ||
| pf->opts.stream = f; | ||
| pf->fname = fname; | ||
| *next = pf; | ||
| *next_next = &pf->next; | ||
|
|
||
| if(zsv_new_with_properties(&pf->opts, fname, opts_used, &pf->parser) != zsv_status_ok) { | ||
| fprintf(stderr, "Unable to initialize parser for %s\n", fname); | ||
| return zsv_paste_status_error; | ||
| } else { | ||
| if((pf->zsv_status = zsv_next_row(pf->parser)) == zsv_status_row) | ||
| pf->col_count = zsv_cell_count(pf->parser); | ||
| else | ||
| fprintf(stderr, "Warning: no data read from %s\n", fname); | ||
| } | ||
| return zsv_paste_status_ok; | ||
| } | ||
|
|
||
| int ZSV_MAIN_FUNC(ZSV_COMMAND)(int argc, const char *argv[], struct zsv_opts *opts, const char *opts_used) { | ||
| struct zsv_paste_input_file *inputs = NULL; | ||
| struct zsv_paste_input_file **next_input = &inputs; | ||
| enum zsv_paste_status status = zsv_paste_status_ok; | ||
|
|
||
| struct zsv_csv_writer_options writer_opts = zsv_writer_get_default_opts(); | ||
| zsv_csv_writer writer = zsv_writer_new(&writer_opts); | ||
| if(!writer) { | ||
| status = zsv_printerr(zsv_paste_status_error, "Unable to create csv writer"); | ||
| goto zsv_paste_done; | ||
| } | ||
|
|
||
| for(int i = 1; status == zsv_paste_status_ok && i < argc; i++) { | ||
| const char *arg = argv[i]; | ||
| if(!strcmp(arg, "-h") || !strcmp(arg, "--help")) { | ||
| zsv_paste_usage(); | ||
| goto zsv_paste_done; | ||
| } | ||
|
|
||
| if(0) { // !strcmp(arg, "-x") || !strcmp(arg, "--my-arg")) { ... | ||
| } else { | ||
| status = zsv_paste_add_input(arg, next_input, &next_input, opts, opts_used); | ||
| } | ||
| } | ||
|
|
||
| if(status == zsv_paste_status_ok) { | ||
| if(!inputs) { | ||
| fprintf(stderr, "Please specify at least one input file\n"); | ||
| status = zsv_paste_status_error; | ||
| goto zsv_paste_done; | ||
| } | ||
|
|
||
| // print headers | ||
| zsv_paste_print_row(writer, inputs); | ||
|
|
||
| // print one row at a time | ||
| while(zsv_paste_load_row(inputs)) | ||
| zsv_paste_print_row(writer, inputs); | ||
| } | ||
|
|
||
| zsv_paste_done: | ||
| for(struct zsv_paste_input_file *next, *pf = inputs; pf; pf = next) { | ||
| next = pf->next; | ||
| zsv_paste_delete_input(pf); | ||
| } | ||
|
|
||
| if(opts->stream && opts->stream != stdin) | ||
| fclose(opts->stream); | ||
|
|
||
| zsv_writer_delete(writer); | ||
| return status; | ||
| } |