Refactor directory structure

* Move core library sources into src/lib/core
* Move command-line programs into src/cli

1 files changed, 0 insertions, 654 deletions

diff --git a/src/str.c b/src/str.c
deleted file mode 100644
index 868a6c7..0000000
--- a/src/str.c
+++ /dev/null
@@ -1,654 +0,0 @@
-/**
- * @file strings.c
- */
-#include <unistd.h>
-#include "str.h"
-
-int num_chars(const char *sptr, int ch) {
-    int result = 0;
-    for (int i = 0; sptr[i] != '\0'; i++) {
-        if (sptr[i] == ch) {
-            result++;
-        }
-    }
-    return result;
-}
-
-int startswith(const char *sptr, const char *pattern) {
-    if (!sptr || !pattern) {
-        return 0;
-    }
-    for (size_t i = 0; i < strlen(pattern); i++) {
-        if (sptr[i] != pattern[i]) {
-            return 0;
-        }
-    }
-    return 1;
-}
-
-int endswith(const char *sptr, const char *pattern) {
-    if (!sptr || !pattern) {
-        return 0;
-    }
-    ssize_t sptr_size = (ssize_t) strlen(sptr);
-    ssize_t pattern_size = (ssize_t) strlen(pattern);
-
-    if (sptr_size == pattern_size) {
-       if (strcmp(sptr, pattern) == 0) {
-           return 1; // yes
-       }
-       return 0; // no
-    }
-
-    ssize_t s = sptr_size - pattern_size;
-    if (s < 0) {
-        return 0;
-    }
-
-    for (size_t p = 0 ; s < sptr_size; s++, p++) {
-        if (sptr[s] != pattern[p]) {
-            // sptr does not end with pattern
-            return 0;
-        }
-    }
-    // sptr ends with pattern
-    return 1;
-}
-
-void strchrdel(char *sptr, const char *chars) {
-    if (sptr == NULL || chars == NULL) {
-        return;
-    }
-
-    for (size_t i = 0; i < strlen(chars); i++) {
-        char ch[2] = {0};
-        strncpy(ch, &chars[i], 1);
-        replace_text(sptr, ch, "", 0);
-    }
-}
-
-char** split(char *_sptr, const char* delim, size_t max)
-{
-    if (_sptr == NULL || delim == NULL) {
-        return NULL;
-    }
-    size_t split_alloc = 0;
-    // Duplicate the input string and save a copy of the pointer to be freed later
-    char *orig = _sptr;
-    char *sptr = strdup(orig);
-
-    if (!sptr) {
-        return NULL;
-    }
-
-    // Determine how many delimiters are present
-    for (size_t i = 0; i < strlen(delim); i++) {
-        if (max && i > max) {
-            break;
-        }
-        split_alloc += num_chars(sptr, delim[i]);
-    }
-
-    // Preallocate enough records based on the number of delimiters
-    char **result = calloc(split_alloc + 2, sizeof(result[0]));
-    if (!result) {
-        guard_free(sptr);
-        return NULL;
-    }
-
-    // No delimiter, but the string was not NULL, so return the original string
-    if (split_alloc == 0) {
-        result[0] = sptr;
-        return result;
-    }
-
-    // Separate the string into individual parts and store them in the result array
-    char *token = NULL;
-    char *sptr_tmp = sptr;
-    size_t pos = 0;
-    size_t i;
-    for (i = 0; (token = strsep(&sptr_tmp, delim)) != NULL; i++) {
-        // When max is zero, record all tokens
-        if (max > 0 && i == max) {
-            // Maximum number of splits occurred.
-            // Record position in string
-            pos = token - sptr;
-            break;
-        }
-        result[i] = calloc(STASIS_BUFSIZ, sizeof(char));
-        if (!result[i]) {
-            return NULL;
-        }
-        strcpy(result[i], token);
-    }
-
-    // pos is non-zero when maximum split is reached
-    if (pos) {
-        // append the remaining string contents to array
-        result[i] = calloc(STASIS_BUFSIZ, sizeof(char));
-        if (!result[i]) {
-            return NULL;
-        }
-        strcpy(result[i], &orig[pos]);
-    }
-
-    guard_free(sptr);
-    return result;
-}
-
-char *join(char **arr, const char *separator) {
-    char *result = NULL;
-    int records = 0;
-    size_t total_bytes = 0;
-
-    if (!arr || !separator) {
-        return NULL;
-    }
-
-    for (int i = 0; arr[i] != NULL; i++) {
-        total_bytes += strlen(arr[i]);
-        records++;
-    }
-    total_bytes += (records * strlen(separator)) + 1;
-
-    result = (char *)calloc(total_bytes, sizeof(char));
-    for (int i = 0; i < records; i++) {
-        strcat(result, arr[i]);
-        if (i < (records - 1)) {
-            strcat(result, separator);
-        }
-    }
-    return result;
-}
-
-char *join_ex(char *separator, ...) {
-    va_list ap;                 // Variadic argument list
-    size_t separator_len = 0;   // Length of separator string
-    size_t size = 0;            // Length of output string
-    size_t argc = 0;            // Number of arguments ^ "..."
-    char **argv = NULL;         // Arguments
-    char *current = NULL;       // Current argument
-    char *result = NULL;        // Output string
-
-    if (separator == NULL) {
-        return NULL;
-    }
-
-    // Initialize array
-    argv = calloc(argc + 1, sizeof(char **));
-    if (argv == NULL) {
-        perror("join_ex calloc failed");
-        return NULL;
-    }
-
-    // Get length of the separator
-    separator_len = strlen(separator);
-
-    // Process variadic arguments:
-    // 1. Iterate over argument list `ap`
-    // 2. Assign `current` with the value of argument in `ap`
-    // 3. Extend the `argv` array by the latest argument count `argc`
-    // 4. Sum the length of the argument and the `separator` passed to the function
-    // 5. Append `current` string to `argv` array
-    // 6. Update argument counter `argc`
-    va_start(ap, separator);
-    for(argc = 0; (current = va_arg(ap, char *)) != NULL; argc++) {
-        char **tmp = realloc(argv, (argc + 1) * sizeof(char *));
-        if (tmp == NULL) {
-            perror("join_ex realloc failed");
-            guard_free(argv);
-            return NULL;
-        } else {
-            argv = tmp;
-        }
-        size += strlen(current) + separator_len;
-        argv[argc] = strdup(current);
-    }
-    va_end(ap);
-
-    // Generate output string
-    result = calloc(size + 1, sizeof(char));
-    for (size_t i = 0; i < argc; i++) {
-        // Append argument to string
-        strcat(result, argv[i]);
-
-        // Do not append a trailing separator when we reach the last argument
-        if (i < (argc - 1)) {
-            strcat(result, separator);
-        }
-        guard_free(argv[i]);
-    }
-    guard_free(argv);
-
-    return result;
-}
-
-char *substring_between(char *sptr, const char *delims) {
-    char delim_open[255] = {0};
-    char delim_close[255] = {0};
-    if (sptr == NULL || delims == NULL) {
-        return NULL;
-    }
-
-    // Ensure we have enough delimiters to continue
-    size_t delim_count = strlen(delims);
-    if (delim_count < 2 || delim_count % 2 || (delim_count > (sizeof(delim_open) - 1)) != 0) {
-        return NULL;
-    }
-    size_t delim_take = delim_count / 2;
-
-    // How else am I supposed to consume the first and last n chars of the string? Give me a break.
-    // warning: ‘__builtin___strncpy_chk’ specified bound depends on the length of the source argument
-    // ---
-    //strncpy(delim_open, delims, delim_take);
-    size_t i = 0;
-    while (i < delim_take && i < sizeof(delim_open)) {
-        delim_open[i] = delims[i];
-        i++;
-    }
-
-    //strncpy(delim_close, &delims[delim_take], delim_take);
-    i = 0;
-    while (i < delim_take && i < sizeof(delim_close)) {
-        delim_close[i] = delims[i + delim_take];
-        i++;
-    }
-
-    // Create pointers to the delimiters
-    char *start = strstr(sptr, delim_open);
-    if (start == NULL || strlen(start) == 0) {
-        return NULL;
-    }
-
-    char *end = strstr(start + 1, delim_close);
-    if (end == NULL) {
-        return NULL;
-    }
-
-    start += delim_count / 2;    // ignore leading delimiter
-
-    // Get length of the substring
-    size_t length = strlen(start) - strlen(end);
-    if (!length) {
-        return NULL;
-    }
-
-    // Return the contents of the substring
-    return strndup(start, length);
-}
-
-/*
- * Comparison functions for `strsort`
- */
-static int _strsort_alpha_compare(const void *a, const void *b) {
-    const char *aa = *(const char **)a;
-    const char *bb = *(const char **)b;
-    int result = strcmp(aa, bb);
-    return result;
-}
-
-static int _strsort_numeric_compare(const void *a, const void *b) {
-    const char *aa = *(const char **)a;
-    const char *bb = *(const char **)b;
-
-    if (isdigit(*aa) && isdigit(*bb)) {
-        long ia = strtol(aa, NULL, 10);
-        long ib = strtol(bb, NULL, 10);
-
-        if (ia == ib) {
-            return 0;
-        } else if (ia < ib) {
-            return -1;
-        } else if (ia > ib) {
-            return 1;
-        }
-    }
-    return 0;
-}
-
-static int _strsort_asc_compare(const void *a, const void *b) {
-    const char *aa = *(const char**)a;
-    const char *bb = *(const char**)b;
-    size_t len_a = strlen(aa);
-    size_t len_b = strlen(bb);
-    return len_a > len_b;
-}
-
-/*
- * Helper function for `strsortlen`
- */
-static int _strsort_dsc_compare(const void *a, const void *b) {
-    const char *aa = *(const char**)a;
-    const char *bb = *(const char**)b;
-    size_t len_a = strlen(aa);
-    size_t len_b = strlen(bb);
-    return len_a < len_b;
-}
-
-void strsort(char **arr, unsigned int sort_mode) {
-    if (arr == NULL) {
-        return;
-    }
-
-    typedef int (*compar)(const void *, const void *);
-    // Default mode is alphabetic sort
-    compar fn = _strsort_alpha_compare;
-
-    if (sort_mode == STASIS_SORT_LEN_DESCENDING) {
-        fn = _strsort_dsc_compare;
-    } else if (sort_mode == STASIS_SORT_LEN_ASCENDING) {
-        fn = _strsort_asc_compare;
-    } else if (sort_mode == STASIS_SORT_ALPHA) {
-        fn = _strsort_alpha_compare; // ^ still selectable though ^
-    } else if (sort_mode == STASIS_SORT_NUMERIC) {
-        fn = _strsort_numeric_compare;
-    }
-
-    size_t arr_size = 0;
-
-    // Determine size of array (+ terminator)
-    for (size_t i = 0; arr[i] != NULL; i++) {
-        arr_size = i;
-    }
-    arr_size++;
-
-    qsort(arr, arr_size, sizeof(char *), fn);
-}
-
-
-char *strstr_array(char **arr, const char *str) {
-    if (arr == NULL || str == NULL) {
-        return NULL;
-    }
-
-    for (int i = 0; arr[i] != NULL; i++) {
-        if (strstr(arr[i], str) != NULL) {
-            return arr[i];
-        }
-    }
-    return NULL;
-}
-
-
-char **strdeldup(char **arr) {
-    if (!arr) {
-        return NULL;
-    }
-
-    size_t records;
-    // Determine the length of the array
-    for (records = 0; arr[records] != NULL; records++);
-
-    // Allocate enough memory to store the original array contents
-    // (It might not have duplicate values, for example)
-    char **result = (char **)calloc(records + 1, sizeof(char *));
-    if (!result) {
-        return NULL;
-    }
-
-    int rec = 0;
-    size_t i = 0;
-    while(i < records) {
-        // Search for value in results
-        if (strstr_array(result, arr[i]) != NULL) {
-            // value already exists in results so ignore it
-            i++;
-            continue;
-        }
-
-        // Store unique value
-        result[rec] = strdup(arr[i]);
-        if (!result[rec]) {
-            for (size_t die = 0; result[die] != NULL; die++) {
-                guard_free(result[die]);
-            }
-            guard_free(result);
-            return NULL;
-        }
-
-        i++;
-        rec++;
-    }
-    return result;
-}
-
-char *lstrip(char *sptr) {
-    char *tmp = sptr;
-    size_t bytes = 0;
-
-    if (sptr == NULL) {
-        return NULL;
-    }
-
-    while (strlen(tmp) > 1 && (isblank(*tmp) || isspace(*tmp))) {
-        bytes++;
-        tmp++;
-    }
-    if (tmp != sptr) {
-        memmove(sptr, sptr + bytes, strlen(sptr) - bytes);
-        memset((sptr + strlen(sptr)) - bytes, '\0', bytes);
-    }
-    return sptr;
-}
-
-char *strip(char *sptr) {
-    if (sptr == NULL) {
-        return NULL;
-    }
-
-    size_t len = strlen(sptr);
-    if (len == 0) {
-        return sptr;
-    } else if (len == 1 && (isblank(*sptr) || isspace(*sptr))) {
-        *sptr = '\0';
-        return sptr;
-    } for (size_t i = len; i != 0; --i) {
-        if (sptr[i] == '\0') {
-            continue;
-        }
-        if (isspace(sptr[i]) || isblank(sptr[i])) {
-            sptr[i] = '\0';
-        } else {
-            break;
-        }
-    }
-    return sptr;
-}
-
-int isempty(char *sptr) {
-    if (sptr == NULL) {
-        return -1;
-    }
-
-    char *tmp = sptr;
-    while (*tmp) {
-        if (!isblank(*tmp) && !isspace(*tmp) && !iscntrl(*tmp)) {
-            return 0;
-        }
-        tmp++;
-    }
-    return 1;
-}
-
-
-int isquoted(char *sptr) {
-    const char *quotes = "'\"";
-
-    if (sptr == NULL) {
-        return -1;
-    }
-
-    char *quote_open = strpbrk(sptr, quotes);
-    if (!quote_open) {
-        return 0;
-    }
-    char *quote_close = strpbrk(quote_open + 1, quotes);
-    if (!quote_close) {
-        return 0;
-    }
-    return 1;
-}
-
-int isrelational(char ch) {
-    char symbols[] = "~!=<>";
-    char *symbol = symbols;
-    while (*symbol != '\0') {
-        if (ch == *symbol) {
-            return 1;
-        }
-        symbol++;
-    }
-    return 0;
-}
-
-void print_banner(const char *s, int len) {
-    size_t s_len = strlen(s);
-    if (!s_len) {
-        return;
-    }
-    for (size_t i = 0; i < (len / s_len); i++) {
-        for (size_t c = 0; c < s_len; c++) {
-            putchar(s[c]);
-        }
-    }
-    putchar('\n');
-}
-
-/**
- * Collapse whitespace in `s`. The string is modified in place.
- * @param s
- * @return pointer to `s`
- */
-char *normalize_space(char *s) {
-    size_t len;
-    size_t trim_pos;
-    int add_whitespace = 0;
-    char *result = s;
-    char *tmp;
-
-    if (s == NULL) {
-        return NULL;
-    }
-
-    if ((tmp = calloc(strlen(s) + 1, sizeof(char))) == NULL) {
-        perror("could not allocate memory for temporary string");
-        return NULL;
-    }
-    char *tmp_orig = tmp;
-
-    // count whitespace, if any
-    for (trim_pos = 0; isblank(s[trim_pos]); trim_pos++);
-    // trim whitespace from the left, if any
-    memmove(s, &s[trim_pos], strlen(&s[trim_pos]));
-    // cull bytes not part of the string after moving
-    len = strlen(s);
-    s[len - trim_pos] = '\0';
-
-    // Generate a new string with extra whitespace stripped out
-    while (*s != '\0') {
-        // Skip over any whitespace, but record that we encountered it
-        if (isblank(*s)) {
-            s++;
-            add_whitespace = 1;
-            continue;
-        }
-        // This gate avoids filling tmp with whitespace; we want to make our own
-        if (add_whitespace) {
-            *tmp = ' ';
-            tmp++;
-            add_whitespace = 0;
-        }
-        // Write character in s to tmp
-        *tmp = *s;
-        // Increment string pointers
-        s++;
-        tmp++;
-    }
-
-    // Rewrite the input string
-    strcpy(result, tmp_orig);
-    guard_free(tmp_orig);
-    return result;
-}
-
-char **strdup_array(char **array) {
-    char **result = NULL;
-    size_t elems = 0;
-
-    // Guard
-    if (array == NULL) {
-        return NULL;
-    }
-
-    // Count elements in `array`
-    for (elems = 0; array[elems] != NULL; elems++);
-
-    // Create new array
-    result = calloc(elems + 1, sizeof(*result));
-    for (size_t i = 0; i < elems; i++) {
-        result[i] = strdup(array[i]);
-    }
-
-    return result;
-}
-
-int strcmp_array(const char **a, const char **b) {
-    size_t a_len = 0;
-    size_t b_len = 0;
-
-    // This could lead to false-positives depending on what the caller plans to achieve
-    if (a == NULL && b == NULL) {
-        return 0;
-    } else if (a == NULL) {
-        return -1;
-    } else if (b == NULL) {
-        return 1;
-    }
-
-    // Get length of arrays
-    for (a_len = 0; a[a_len] != NULL; a_len++);
-    for (b_len = 0; b[b_len] != NULL; b_len++);
-
-    // Check lengths are equal
-    if (a_len < b_len) return (int)(b_len - a_len);
-    else if (a_len > b_len) return (int)(a_len - b_len);
-
-    // Compare strings in the arrays returning the total difference in bytes
-    int result = 0;
-    for (size_t ai = 0, bi = 0 ;a[ai] != NULL || b[bi] != NULL; ai++, bi++) {
-        int status = 0;
-        if ((status = strcmp(a[ai], b[bi]) != 0)) {
-            result += status;
-        }
-    }
-    return result;
-}
-
-int isdigit_s(const char *s) {
-    if (!s || !strlen(s)) {
-        return 0;   // nothing to do, fail
-    }
-    for (size_t i = 0; s[i] != '\0'; i++) {
-        if (isdigit(s[i]) == 0) {
-            return 0;   // non-digit found, fail
-        }
-    }
-    return 1;   // all digits, succeed
-}
-
-char *tolower_s(char *s) {
-    for (size_t i = 0; s[i] != '\0'; i++) {
-        s[i] = (char)tolower(s[i]);
-    }
-    return s;
-}
-
-char *to_short_version(const char *s) {
-    char *result;
-    result = strdup(s);
-    if (!result) {
-        return NULL;
-    }
-    strchrdel(result, ".");
-    return result;
-}