Merge branch 'master' of https://github.com/c272/algo

Author: c272

.travis.yml

@@ -1,2 +1,10 @@
 language: csharp
-solution: Algo.sln
+solution: Algo.sln
+
+deploy:
+  provider: releases
+  api_key: $gh_oauth
+  file: "algo"
+  skip_cleanup: true
+  on:
+    tags: true

Algo/ALEC/ALEC.cs

@@ -414,7 +414,7 @@ public static void PrintCompileHeader()
   \ \_\ \_\  \ \_____\  \ \_____\  \ \_____\ 
    \/_/\/_/   \/_____/   \/_____/   \/_____/
 ");
-            Console.WriteLine("ALEC (Algo Executable Language Compiler) v" + MAJOR_VER + "." + MINOR_VER + "." + verInfo[2] + ", build " + verInfo[3]);
+            Console.WriteLine("ALEC (Algo Language Executable Compiler) v" + MAJOR_VER + "." + MINOR_VER + "." + verInfo[2] + ", build " + verInfo[3]);
             Console.WriteLine("Framework: .NET Framework ENV " + Environment.Version);
             Console.WriteLine("Operating System: " + Environment.OSVersion);
             if (Environment.Is64BitProcess)
@@ -470,4 +470,4 @@ public enum ALECEvent
         Notice,
         Success
     }
-}
+}

Algo/Standard Library/Algo Scripts/string.ag

@@ -1,4 +1,4 @@
-//The "string" standard library provided by Algo.
+//The "string" standard library provided by Algo.
 //v0.0.4, revision 0.
 
 library string 
@@ -25,6 +25,9 @@ library string
 	//Returns a boolean of whether a string ends with a substring.
 	external endsWith <- std_string.endsWith;
 
+	//Returns a boolean of whether a string starts with a substring.
+	external startsWith <- std_string.startsWith;
+
 	//Returns a boolean of whether a string represents an integer.
 	external isInteger <- std_string.isInteger;
 
@@ -42,4 +45,4 @@ library string
 library regex
 {
     external match <- std_string.regex_match;
-}
+}

Algo/Standard Library/Libraries/AlgoStd_String.cs

@@ -1,4 +1,4 @@
-using Antlr4.Runtime;
+using Antlr4.Runtime;
 using ExtendedNumerics;
 using System;
 using System.Collections.Generic;
@@ -61,6 +61,14 @@ public class AlgoStd_String : IFunctionPlugin
                 Function = StringEndsWith
             },
 
+            //StartsWith
+            new AlgoPluginFunction()
+            {
+                Name = "startsWith",
+                ParameterCount = 2,
+                Function = StringStartsWith
+            },
+
             //IsInteger
             new AlgoPluginFunction()
             {
@@ -377,6 +385,25 @@ public static AlgoValue StringEndsWith(ParserRuleContext context, params AlgoVal
             };
         }
 
+        //Returns whether a string value starts with a specific substring.
+        public static AlgoValue StringStartsWith(ParserRuleContext context, params AlgoValue[] args)
+        {
+            //Arguments are strings?
+            if (args[0].Type != AlgoValueType.String || args[1].Type != AlgoValueType.String)
+            {
+                Error.Fatal(context, "Source and substring must both be of type String.");
+                return null;
+            }
+
+            string source = (string)args[0].Value;
+            string start = (string)args[1].Value;
+            return new AlgoValue()
+            {
+                Type = AlgoValueType.Boolean,
+                Value = source.StartsWith(start)
+            };
+        }
+
         //Check if a string is a valid integer.
         public static AlgoValue IsInteger(ParserRuleContext context, params AlgoValue[] args)
         {