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A compact help format
This commit is contained in:
Arun Prakash Jana
parent
3d89b3f945
commit
1efa17cf23
74
README.md
74
README.md
@ -185,43 +185,43 @@ To cook yourself, download the [latest stable release](https://github.com/jarun/
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#### Keyboard shortcuts
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```
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Key | Function
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-+-
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↑, k, ^P | Previous entry
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↓, j, ^N | Next entry
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PgUp, ^U | Scroll half page up
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PgDn, ^D | Scroll half page down
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Home, g, ^, ^A | Jump to first entry
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End, G, $, ^E | Jump to last entry
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→, ↵, l, ^M | Open file or enter dir
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←, Bksp, h, ^H | Go to parent dir
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Insert | Toggle navigate-as-you-type
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~ | Jump to HOME dir
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& | Jump to initial dir
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- | Jump to last visited dir
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/ | Filter dir contents
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^/ | Open desktop search tool
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. | Toggle hide .dot files
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b | Show bookmark key prompt
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^B | Mark current dir
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^V | Visit marked dir
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c | Show change dir prompt
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d | Toggle detail view
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D | Show current file details
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m | Show concise media info
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M | Show full media info
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s | Toggle sort by file size
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S | Toggle disk usage mode
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t | Toggle sort by mtime
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! | Spawn SHELL in current dir
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e | Edit entry in EDITOR
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o | Open dir in file manager
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p | Open entry in PAGER
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^K | Invoke file path copier
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^L, F2 | Force a redraw, unfilter
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? | Show help, settings
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Q | Quit and change dir
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q, ^Q | Quit
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Key | Function
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- + -
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↑, k, ^P | Previous entry
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↓, j, ^N | Next entry
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PgUp, ^U | Scroll half page up
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PgDn, ^D | Scroll half page down
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Home, g, ^, ^A | Jump to first entry
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End, G, $, ^E | Jump to last entry
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→, ↵, l, ^M | Open file or enter dir
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←, Bksp, h, ^H | Go to parent dir
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Insert | Toggle navigate-as-you-type
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~ | Jump to HOME dir
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& | Jump to initial dir
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- | Jump to last visited dir
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/ | Filter dir contents
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^/ | Open desktop search tool
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. | Toggle hide .dot files
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b | Show bookmark key prompt
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^B | Mark current dir
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^V | Visit marked dir
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c | Show change dir prompt
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d | Toggle detail view
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D | Show current file details
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m | Show concise media info
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M | Show full media info
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s | Toggle sort by file size
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S | Toggle disk usage mode
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t | Toggle sort by mtime
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! | Spawn SHELL in current dir
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e | Edit entry in EDITOR
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o | Open dir in file manager
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p | Open entry in PAGER
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^K | Invoke file path copier
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^L, F2 | Force a redraw, unfilter
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? | Show help, settings
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Q | Quit and change dir
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q, ^Q | Quit
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```
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#### Filters
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116
nnn.c
116
nnn.c
@ -597,6 +597,20 @@ xstricmp(char *s1, char *s2)
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return (int) (TOUPPER(*s1) - TOUPPER(*s2));
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}
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/* Return the integer value of a char representing HEX */
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static char
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xchartohex(char c)
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{
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if (c >= '0' && c <= '9')
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return c - '0';
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c = TOUPPER(c);
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if (c >= 'A' && c <= 'F')
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return c - 'A' + 10;
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return c;
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}
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/* Trim all whitespace from both ends, / from end */
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static char *
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strstrip(char *s)
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@ -1477,55 +1491,77 @@ show_mediainfo(char *fpath, char *arg)
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return 0;
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}
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/*
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* The help string tokens (each line) start with a HEX value
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* which indicates the number of spaces to print before the
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* particular token. This method was chosen instead of a flat
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* string because the number of bytes in help was increasing
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* the binary size by around a hundred bytes. This would only
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* have increased as we keep adding new options.
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*/
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static int
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show_help(char *path)
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{
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char tmp[] = "/tmp/nnnXXXXXX";
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static char helpstr[] = ("\
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Key | Function\n\
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-+-\n\
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↑, k, ^P | Previous entry\n\
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↓, j, ^N | Next entry\n\
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PgUp, ^U | Scroll half page up\n\
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PgDn, ^D | Scroll half page down\n\
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Home, g, ^, ^A | Jump to first entry\n\
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End, G, $, ^E | Jump to last entry\n\
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→, ↵, l, ^M | Open file or enter dir\n\
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←, Bksp, h, ^H | Go to parent dir\n\
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Insert | Toggle navigate-as-you-type\n\
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~ | Jump to HOME dir\n\
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& | Jump to initial dir\n\
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- | Jump to last visited dir\n\
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/ | Filter dir contents\n\
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^/ | Open desktop search tool\n\
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. | Toggle hide .dot files\n\
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b | Show bookmark key prompt\n\
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^B | Mark current dir\n\
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^V | Visit marked dir\n\
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c | Show change dir prompt\n\
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d | Toggle detail view\n\
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D | Show current file details\n\
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m | Show concise media info\n\
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M | Show full media info\n\
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s | Toggle sort by file size\n\
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S | Toggle disk usage mode\n\
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t | Toggle sort by mtime\n\
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! | Spawn SHELL in current dir\n\
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e | Edit entry in EDITOR\n\
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o | Open dir in file manager\n\
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p | Open entry in PAGER\n\
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^K | Invoke file path copier\n\
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^L, F2 | Force a redraw, unfilter\n\
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? | Show help, settings\n\
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Q | Quit and change dir\n\
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q, ^Q | Quit\n\n");
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int i = 0, fd = mkstemp(tmp);
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char *start, *end;
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static char helpstr[] = (
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"cKey | Function\n"
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"e- + -\n"
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"7↑, k, ^P | Previous entry\n"
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"7↓, j, ^N | Next entry\n"
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"7PgUp, ^U | Scroll half page up\n"
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"7PgDn, ^D | Scroll half page down\n"
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"1Home, g, ^, ^A | Jump to first entry\n"
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"2End, G, $, ^E | Jump to last entry\n"
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"4→, ↵, l, ^M | Open file or enter dir\n"
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"1←, Bksp, h, ^H | Go to parent dir\n"
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"9Insert | Toggle navigate-as-you-type\n"
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"e~ | Jump to HOME dir\n"
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"e& | Jump to initial dir\n"
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"e- | Jump to last visited dir\n"
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"e/ | Filter dir contents\n"
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"d^/ | Open desktop search tool\n"
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"e. | Toggle hide .dot files\n"
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"eb | Show bookmark key prompt\n"
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"d^B | Mark current dir\n"
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"d^V | Visit marked dir\n"
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"ec | Show change dir prompt\n"
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"ed | Toggle detail view\n"
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"eD | Show current file details\n"
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"em | Show concise media info\n"
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"eM | Show full media info\n"
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"es | Toggle sort by file size\n"
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"eS | Toggle disk usage mode\n"
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"et | Toggle sort by mtime\n"
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"e! | Spawn SHELL in current dir\n"
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"ee | Edit entry in EDITOR\n"
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"eo | Open dir in file manager\n"
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"ep | Open entry in PAGER\n"
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"d^K | Invoke file path copier\n"
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"9^L, F2 | Force a redraw, unfilter\n"
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"e? | Show help, settings\n"
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"eQ | Quit and change dir\n"
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"aq, ^Q | Quit\n\n");
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if (fd == -1)
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return -1;
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dprintf(fd, "%s", helpstr);
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start = end = helpstr;
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while (*end) {
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while (*end != '\n')
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++end;
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if (start == end) {
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++end;
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continue;
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}
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dprintf(fd, "%*c%.*s", xchartohex(*start), ' ', (int)(end - start), start + 1);
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start = ++end;
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}
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dprintf(fd, "\n");
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if (getenv("NNN_BMS")) {
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dprintf(fd, "BOOKMARKS\n");
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