From: Jason Woofenden <jason@jasonwoof.com>
Date: Fri, 1 Feb 2013 00:33:28 +0000 (-0500)
Subject: terminal.coffee: only console.log() if it exists
X-Git-Tag: v1.0~13
X-Git-Url: https://jasonwoof.com/gitweb/?p=watch-my-terminal.git;a=commitdiff_plain;h=bfab5b72181420d6226cd419b056b01803efb45c

terminal.coffee: only console.log() if it exists

Most web browsers don't I think.
---

diff --git a/terminal.coffee b/terminal.coffee
index e5a404f..8e87bb6 100644
--- a/terminal.coffee
+++ b/terminal.coffee
@@ -7,6 +7,11 @@ else
 	window.terminal = {}
 	my_exports = window.terminal
 
+if console?.log?
+	log = -> console.log arguments...
+else
+	log = -> null
+
 class Terminal
 	# public:
 	constructor: (width, height) ->
@@ -202,7 +207,7 @@ class Terminal
 						@text[row][i] = ' '
 						@attributes[row][i] = @a
 			else
-				console.log "confusing arg for csi_J: #{direction}"
+				log "confusing arg for csi_J: #{direction}"
 		return
 
 	# clear (some or all of) current line
@@ -226,7 +231,7 @@ class Terminal
 					@text[@y][i] = ' '
 					@attributes[@y][i] = @a
 			else
-				console.log "confusing arg for csi_K: #{direction}"
+				log "confusing arg for csi_K: #{direction}"
 		return
 	
 	# move lines downwards (arg is how far)
@@ -280,7 +285,7 @@ class Terminal
 					@cursor_visible = true
 				when '1049'
 					if @saved_normal_screen?
-						console.log "ignoring request to switch to the alt screen because we're already on the alt screen"
+						log "ignoring request to switch to the alt screen because we're already on the alt screen"
 						return
 					@saved_normal_screen = [@x, @y, @text, @attributes]
 					@text = []
@@ -292,7 +297,7 @@ class Terminal
 							@text[y].push ' '
 							@attributes[y].push 0x07
 				else
-					console.log "confusing arg for csiq_h: #{arg}"
+					log "confusing arg for csiq_h: #{arg}"
 		return
 
 	# unmisc
@@ -305,7 +310,7 @@ class Terminal
 					@cursor_visible = false
 				when '1049'
 					if not @saved_normal_screen?
-						console.log "ignoring request to switch to the normal screen because we're already on the normal screen"
+						log "ignoring request to switch to the normal screen because we're already on the normal screen"
 						return
 					@x = @saved_normal_screen[0]
 					@y = @saved_normal_screen[1]
@@ -313,7 +318,7 @@ class Terminal
 					@attributes = @saved_normal_screen[3]
 					@saved_normal_screen = null
 				else
-					console.log "confusing arg for csiq_l: #{arg}"
+					log "confusing arg for csiq_l: #{arg}"
 		return
 
 	# set color, bold, underline, etc
@@ -452,7 +457,7 @@ class Terminal
 
 				else
 					# if we don't recognize the style, go back to default
-					console.log "unrecognized csi_m arg: \"#{arg}\""
+					log "unrecognized csi_m arg: \"#{arg}\""
 					@a = 0
 		return
 
@@ -476,7 +481,7 @@ class Terminal
 			str = str.substr 1
 		command = @[prefix + str.substr(str.length - 1)]
 		if not command?
-			console.log "Unrecognized sequence: ESC[#{str}"
+			log "Unrecognized sequence: ESC[#{str}"
 			return
 		args = str.substr(0, str.length - 1).split ';'
 		command.call this, args...
@@ -484,7 +489,7 @@ class Terminal
 	update_sequence_then_text: (str) ->
 		len = @escape_sequence_length str
 		if len is -1
-			console.log "couldn't find escape sequence here: #{str.substr 0, 25}"
+			log "couldn't find escape sequence here: #{str.substr 0, 25}"
 			@update_text "ESC[" + str
 		else
 			@update_sequence str.substr 0, len