diff options
author | NunoSempere <nuno.semperelh@protonmail.com> | 2024-03-23 17:35:44 -0300 |
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committer | NunoSempere <nuno.semperelh@protonmail.com> | 2024-03-23 17:35:44 -0300 |
commit | 978c7ca1ccda4fc1138c607b2ffaa9fede60bf08 (patch) | |
tree | 637df171013cd4c7fce33a3b663a0a13293071e2 /plugins/strings | |
parent | c8ff246cc256633820a18d6cc149d027082216e1 (diff) |
change formatting + refactor string code
Diffstat (limited to 'plugins/strings')
-rw-r--r-- | plugins/strings/strings.c | 61 | ||||
-rw-r--r-- | plugins/strings/strings.h | 2 |
2 files changed, 63 insertions, 0 deletions
diff --git a/plugins/strings/strings.c b/plugins/strings/strings.c new file mode 100644 index 0000000..59bfdc9 --- /dev/null +++ b/plugins/strings/strings.c @@ -0,0 +1,61 @@ +#include <stdbool.h> +#include <stdio.h> +#include <string.h> + +#define DEBUG false + +// String manipulation +void str_init(char* str, int n) +{ + // could also use <https://manpages.ubuntu.com/manpages/impish/man3/strinit.3pub.html> + for (int i = 0; i < n; i++) + str[i] = ' '; + str[n] = '\0'; +} +int str_replace_start(const char* string, const char* target, const char* replacement, char* output) +{ + int l1 = strlen(string); + int l2 = strlen(target); + int l3 = strlen(replacement); + int l4 = strlen(output); + + if (DEBUG) { + printf("string: %s, target: %s, replacement: %s, output: %s\n", string, target, replacement, output); + printf("%d,%d,%d,%d\n", l1, l2, l3, l4); + } + + if ((l4 < (l1 - l2 + l3)) || l4 < l1) { + printf("Not enough memory in output string.\n"); + return 1; + } + int match = true; + for (int i = 0; i < l2; i++) { + if (string[i] != target[i]) { + match = false; + break; + } + } + if (match) { + if (DEBUG) printf("Found match.\n"); + for (int i = 0; i < l3; i++) { + output[i] = replacement[i]; + } + int counter = l3; + for (int i = l2; i < l1; i++) { + output[counter] = string[i]; + counter++; + } + output[counter] = '\0'; + return 2; // success + } else { + if (DEBUG) printf("Did not find match.\n"); + strcpy(output, string); + } + + return 0; +} +/* +See also: +* <https://web.archive.org/web/20160201212501/coding.debuntu.org/c-implementing-str_replace-replace-all-occurrences-substring> +* https://github.com/irl/la-cucina/blob/master/str_replace.c +*/ diff --git a/plugins/strings/strings.h b/plugins/strings/strings.h new file mode 100644 index 0000000..df08c75 --- /dev/null +++ b/plugins/strings/strings.h @@ -0,0 +1,2 @@ +void str_init(char* str, int n); +int str_replace_start(const char* string, const char* target, const char* replacement, char* output); |