From 1bb8754dce3997bc7fd873dd5e21f90ca9fe288f Mon Sep 17 00:00:00 2001
From: AlexApps99 <alex.apps99@gmail.com>
Date: Tue, 14 Jan 2020 17:10:19 +1300
Subject: [PATCH] Added lower_case and upper_case commands

---
 doc/variables.xml | 22 +++++++++++++++++++++-
 src/core.cc       |  6 ++++++
 src/misc.cc       | 16 ++++++++++++++++
 src/misc.h        |  2 ++
 4 files changed, 45 insertions(+), 1 deletion(-)

diff --git a/doc/variables.xml b/doc/variables.xml
index 3cec3d7b..18001005 100644
--- a/doc/variables.xml
+++ b/doc/variables.xml
@@ -3847,7 +3847,27 @@
             </command>
             <option>text</option>
         </term>
-        <listitem>All words capitalized regardless.
+        <listitem>Capitalises the start of each word.
+        <para /></listitem>
+    </varlistentry>
+    <varlistentry>
+        <term>
+            <command>
+                <option>lower_case</option>
+            </command>
+            <option>text</option>
+        </term>
+        <listitem>Converts all letters into lowercase.
+        <para /></listitem>
+    </varlistentry>
+    <varlistentry>
+        <term>
+            <command>
+                <option>upper_case</option>
+            </command>
+            <option>text</option>
+        </term>
+        <listitem>Converts all letters into uppercase.
         <para /></listitem>
     </varlistentry>
     <varlistentry>
diff --git a/src/core.cc b/src/core.cc
index c2a105f7..63d46103 100644
--- a/src/core.cc
+++ b/src/core.cc
@@ -886,6 +886,12 @@ struct text_object *construct_text_object(char *s, const char *arg, long line,
   END OBJ(start_case, 0) obj->data.s = STRNDUP_ARG;
   obj->callbacks.print = &print_cap;
   obj->callbacks.free = &gen_free_opaque;
+  END OBJ(lower_case, 0) obj->data.s = STRNDUP_ARG;
+  obj->callbacks.print = &print_lower;
+  obj->callbacks.free = &gen_free_opaque;
+  END OBJ(upper_case, 0) obj->data.s = STRNDUP_ARG;
+  obj->callbacks.print = &print_upper;
+  obj->callbacks.free = &gen_free_opaque;
   END OBJ(catp, 0) obj->data.s = STRNDUP_ARG;
   obj->callbacks.print = &print_catp;
   obj->callbacks.free = &gen_free_opaque;
diff --git a/src/misc.cc b/src/misc.cc
index b447a347..6d5b9b92 100644
--- a/src/misc.cc
+++ b/src/misc.cc
@@ -108,6 +108,22 @@ void print_cap(struct text_object *obj, char *p, unsigned int p_max_size) {
   snprintf(p, p_max_size, "%s", buf);
 }
 
+void print_lower(struct text_object *obj, char *p, unsigned int p_max_size) {
+  evaluate(obj->data.s, p, p_max_size);
+  for (unsigned int x = 0; x < p_max_size-1 && p[x]; x++) {
+    p[x] = tolower(p[x]);
+  }
+  p[p_max_size-1] = '\0';
+}
+
+void print_upper(struct text_object *obj, char *p, unsigned int p_max_size) {
+  evaluate(obj->data.s, p, p_max_size);
+  for (unsigned int x = 0; x < p_max_size-1 && p[x]; x++) {
+    p[x] = toupper(p[x]);
+  }
+  p[p_max_size-1] = '\0';
+}
+
 long long int apply_base_multiplier(const char *s, long long int num) {
   long long int base = 1024LL;
   if (*s && (0 == (strcmp(s, "si")))) { base = 1000LL; }
diff --git a/src/misc.h b/src/misc.h
index a1cd7770..7033dbdb 100644
--- a/src/misc.h
+++ b/src/misc.h
@@ -36,5 +36,7 @@
 void print_cat(struct text_object *, char *, unsigned int);
 void print_catp(struct text_object *, char *, unsigned int);
 void print_cap(struct text_object *, char *, unsigned int);
+void print_lower(struct text_object *, char *, unsigned int);
+void print_upper(struct text_object *, char *, unsigned int);
 long long apply_base_multiplier(const char *, long long int);
 #endif /* _MISC_H */