env vars documentation

diff --git a/mdp.1 b/mdp.1
index ba7c24a..01523af 100644 (file)
--- a/mdp.1
+++ b/mdp.1
@@ -56,6 +56,26 @@ Display usage message and exit.
 .BR \-v ", " \-\^\-version
 Display version and license information.
 .
+.SH ENVIRONMENT VARIABLES
+.SS "Output Control"
+.TP
+.BR MDP_LIST_HEAD[1-3],\ MDP_LIST_OPEN[1-3]
+Controls the list characters of unordered lists.
+
+The default is equivalent to:
+.br
+MDP_LIST_OPEN1=' |  '
+.br
+MDP_LIST_OPEN2=' |  '
+.br
+MDP_LIST_OPEN3=' |  '
+.br
+MDP_LIST_HEAD1=' +- '
+.br
+MDP_LIST_HEAD2=' +- '
+.br
+MDP_LIST_HEAD3=' +- '
+.
 .SH MARKDOWN FORMATTING
 For a complete list of supported markups, refer the sample presentation
 (sample.md) provided alongside

diff --git a/src/viewer.c b/src/viewer.c
index 2c4c8fa..89365bf 100644 (file)
--- a/src/viewer.c
+++ b/src/viewer.c
@@ -61,6 +61,18 @@ static short red_ramp_invert[24]   = { 15, 231, 231, 224, 224, 225,
                                       206, 207, 201, 200, 199, 199,
                                       198, 198, 197, 197, 196, 196};
 
+// unordered list characters
+//
+// override via env vars:
+// export MDP_LIST_OPEN1="    " MDP_LIST_OPEN2="    " MDP_LIST_OPEN3="    "
+// export MDP_LIST_HEAD1=" ■  " MDP_LIST_HEAD2=" ●  " MDP_LIST_HEAD3=" ▫  "
+static const char *list_open1 = " |  ";
+static const char *list_open2 = " |  ";
+static const char *list_open3 = " |  ";
+static const char *list_head1 = " +- ";
+static const char *list_head2 = " +- ";
+static const char *list_head3 = " +- ";
+
 int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reload, int noreload, int slidenum) {
 
     int c = 0;          // char
@@ -517,27 +529,6 @@ int ncurses_display(deck_t *deck, int notrans, int nofade, int invert, int reloa
     return reload;
 }
 
-static const char *list_open1 = " |  ";
-static const char *list_open2 = " |  ";
-static const char *list_open3 = " |  ";
-static const char *list_head1 = " +- ";
-static const char *list_head2 = " +- ";
-static const char *list_head3 = " +- ";
-/*
-export MDP_LIST_OPEN1="    "
-export MDP_LIST_OPEN2="    "
-export MDP_LIST_OPEN3="    "
-export MDP_LIST_HEAD1=" ■  "
-export MDP_LIST_HEAD2=" ▫  "
-export MDP_LIST_HEAD3=" ●  "
-
-export MDP_LIST_OPEN1=" │  "
-export MDP_LIST_OPEN2=" │  "
-export MDP_LIST_OPEN3=" │  "
-export MDP_LIST_HEAD1=" ▇─ "
-export MDP_LIST_HEAD2=" ▓─ "
-export MDP_LIST_HEAD3=" ▒─ "
-*/
 void setup_list_strings(void)
 {
     const char *str;