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tweaks: rename a variable, to be easier to read and to make more sense 

Also update and improve five comments.
This commit is contained in:
Benno Schulenberg 2021-10-10 10:38:51 +02:00
parent 77457fa6e9
commit 9a9714fe0c
1 changed files with 13 additions and 17 deletions
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30
src/prompt.c
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@ -446,8 +446,8 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
bool finished;
functionptrtype func;
#ifdef ENABLE_HISTORIES
char *magichistory = NULL;
/* The (partial) answer that was typed at the prompt, if any. */
char *stored_string = NULL;
/* Whatever the answer was before the user foraged into history. */
#ifdef ENABLE_TABCOMP
bool previous_was_tab = FALSE;
/* Whether the previous keystroke was an attempt at tab completion. */
@ -470,7 +470,7 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
refresh_func();
*actual = KEY_WINCH;
#ifdef ENABLE_HISTORIES
free(magichistory);
free(stored_string);
#endif
return NULL;
}
@ -504,16 +504,14 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
if (func == get_older_item) {
if (history_list != NULL) {
/* If this is the first step into history, start at the bottom. */
if (magichistory == NULL)
if (stored_string == NULL)
reset_history_pointer_for(*history_list);
/* If we're scrolling up at the bottom of the history list
* and answer isn't blank, save answer in magichistory. */
/* When moving up from the bottom, remember the current answer. */
if ((*history_list)->next == NULL)
magichistory = mallocstrcpy(magichistory, answer);
stored_string = mallocstrcpy(stored_string, answer);
/* Get the older search from the history list and save it in
* answer. If there is no older search, don't do anything. */
/* If there is an older item, move to it and copy its string. */
if ((*history_list)->prev != NULL) {
*history_list = (*history_list)->prev;
answer = mallocstrcpy(answer, (*history_list)->data);
@ -522,19 +520,17 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
}
} else if (func == get_newer_item) {
if (history_list != NULL) {
/* Get the newer search from the history list and save it in
* answer. If there is no newer search, don't do anything. */
/* If there is a newer item, move to it and copy its string. */
if ((*history_list)->next != NULL) {
*history_list = (*history_list)->next;
answer = mallocstrcpy(answer, (*history_list)->data);
typing_x = strlen(answer);
}
/* If we've reached the bottom of the history list, and answer
* is blank, and magichistory is set, restore the old answer. */
/* When at the bottom of the history list, restore the old answer. */
if ((*history_list)->next == NULL &&
*answer == '\0' && magichistory != NULL) {
answer = mallocstrcpy(answer, magichistory);
*answer == '\0' && stored_string != NULL) {
answer = mallocstrcpy(answer, stored_string);
typing_x = strlen(answer);
}
}
@ -568,9 +564,9 @@ functionptrtype acquire_an_answer(int *actual, bool *listed,
#ifdef ENABLE_HISTORIES
/* If the history pointer was moved, point it at the bottom again. */
if (magichistory != NULL) {
if (stored_string != NULL) {
reset_history_pointer_for(*history_list);
free(magichistory);
free(stored_string);
}
#endif