doc: Fix typos (#76)

Found via `codespell -S data,./test/third_party -L ded,nast` and `typos
--hidden --format brief`

Author: kianmeng

.github/workflows/ci.yml

@@ -290,7 +290,7 @@ jobs:
         path: ${{env.Bin}}
         merge-multiple: true
 
-    - name: List Release Directiory
+    - name: List Release Directory
       run: |
         ls -l ${{env.Bin}}
 

README.md

@@ -125,7 +125,7 @@ guix package --install astroterm          # add to current profile
      - **Linux:** `linux`
      - **macOS:** `darwin`
    - Replace `<arch>` with the appropriate architecture:
-     - **Linux:** `x86_64` (arm64 support to come after [Ubuntu arm64 runners](https://github.blog/news-insights/product-news/arm64-on-github-actions-powering-faster-more-efficient-build-systems/) are avilable)
+     - **Linux:** `x86_64` (arm64 support to come after [Ubuntu arm64 runners](https://github.blog/news-insights/product-news/arm64-on-github-actions-powering-faster-more-efficient-build-systems/) are available)
      - **Apple Silicon (M-series):** `aarch64`
      - **Intel-based Macs:** `x86_64`
    - To view all supported combinations, see the [Releases](https://github.com/da-luce/astroterm/releases) page.

include/coord.h

@@ -1,8 +1,8 @@
 /* Coordinate system utilities.
  *
- * Coordinate systems definitons
+ * Coordinate systems definitions
  *  - All angles in radians unless otherwise noted
- *  - Using common mathmatical conventions as opposed to physics
+ *  - Using common mathematical conventions as opposed to physics
  *  - https://en.wikipedia.org/wiki/Spherical_coordinate_system
  *  - FIXME: this is not the ISO standard, maybe we should change it.
  *

src/astro.c

@@ -394,7 +394,7 @@ const char *get_zodiac_symbol(int month, int day)
 /* Takes the normalized age of the moon within the synodic month
  * (phase ∈ [0, 1)), and returns the phase of the moon [0,1,...,7], where
  * 0 : new moon
- * 1 : waxing cresent
+ * 1 : waxing crescent
  * ...
  * 4 : full moon
  * etc.

src/core.c

@@ -461,7 +461,7 @@ bool star_numbers_by_magnitude(int **num_by_mag, const struct Star *star_table,
     memcpy(table_copy, star_table, num_stars * sizeof(*table_copy));
     qsort(table_copy, num_stars, sizeof(struct Star), star_magnitude_comparator);
 
-    // Create and fill array of indicies in table copy
+    // Create and fill array of indices in table copy
     *num_by_mag = malloc(num_stars * sizeof(int));
     if (*num_by_mag == NULL)
     {

src/core_render.c

@@ -263,7 +263,7 @@ void render_azimuthal_grid(WINDOW *win, const struct Conf *config)
     int step_sizes[5] = {10, 15, 30, 45, 90};
     int length = sizeof(step_sizes) / sizeof(step_sizes[0]);
 
-    // Minumum number of rows separating grid line (at end of window)
+    // Minimum number of rows separating grid line (at end of window)
     int min_height = 10;
 
     // Set the step size to the smallest desirable increment

src/stopwatch.c

@@ -6,7 +6,7 @@
 // UNIX headers
 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
 #include <sys/time.h>
-#include <unistd.h> // Needed for _POSIX_TIMERS definintion & usleep()
+#include <unistd.h> // Needed for _POSIX_TIMERS definition & usleep()
 #endif
 
 // Windows headers

src/strptime.c

@@ -267,7 +267,7 @@ char *strptime(const char *buf, const char *fmt, struct tm *tm)
             continue;
 
         case 'x': /* The date, using the locale's format. */
-            /* fall throug */
+            /* fall through */
 
         case 'D': /* The date as "%y/%m/%d". */
         {

test/core_test.c

@@ -218,7 +218,7 @@ void test_update_planet_positions(void)
     TEST_ASSERT_DOUBLE_WITHIN(P_EPSILON, -0.341956, planet_table[MARS].base.altitude);
 
     // Verify Neptune's position is correct
-    // Note that the outer planets have extra kep elements (position takes mroe calculation)
+    // Note that the outer planets have extra kep elements (position takes more calculation)
     // https://stellarium-web.org/skysource/Neptune?fov=120.00&date=2020-10-23T12:00:00Z&lat=42.36&lng=-71.06&elev=0
     TEST_ASSERT_DOUBLE_WITHIN(P_EPSILON, 5.5390816, planet_table[NEPTUNE].base.azimuth);
     TEST_ASSERT_DOUBLE_WITHIN(P_EPSILON, -0.779650, planet_table[NEPTUNE].base.altitude);