Merged old FileIO

author: Jose Antonio Marquez 2012-01-27 12:05:17 -0800
committer: Jose Antonio Marquez 2012-01-27 12:05:17 -0800
commit: 3a754133dbc138390503341fd2e9beba3e43aa4b (patch)
tree: cdeae7d7dd9a30d7b4fab5afb7efad68d4ec7508 /imports/codemirror/mode/ruby/index.html
parent: b89a7ee8b956c96a1dcee995ea840feddc5d4b27 (diff)
download: ninja-3a754133dbc138390503341fd2e9beba3e43aa4b.tar.gz
1 files changed, 171 insertions, 0 deletions
diff --git a/imports/codemirror/mode/ruby/index.html b/imports/codemirror/mode/ruby/index.html
new file mode 100755
index 00000000..6d33db19
--- /dev/null
+++ b/imports/codemirror/mode/ruby/index.html
@@ -0,0 +1,171 @@
+<!doctype html>
+<html>
+  <head>
+    <title>CodeMirror: Ruby mode</title>
+    <link rel="stylesheet" href="../../lib/codemirror.css">
+    <script src="../../lib/codemirror.js"></script>
+    <script src="ruby.js"></script>
+    <style>
+      .CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}
+      .cm-s-default span.cm-arrow { color: red; }
+    </style>
+    <link rel="stylesheet" href="../../doc/docs.css">
+  </head>
+  <body>
+    <h1>CodeMirror: Ruby mode</h1>
+    <form><textarea id="code" name="code">
+# Code from http://sandbox.mc.edu/~bennet/ruby/code/poly_rb.html
+#
+# This program evaluates polynomials.  It first asks for the coefficients
+# of a polynomial, which must be entered on one line, highest-order first.
+# It then requests values of x and will compute the value of the poly for
+# each x.  It will repeatly ask for x values, unless you the user enters
+# a blank line.  It that case, it will ask for another polynomial.  If the
+# user types quit for either input, the program immediately exits.
+#
+#
+# Function to evaluate a polynomial at x.  The polynomial is given
+# as a list of coefficients, from the greatest to the least.
+def polyval(x, coef)
+    sum = 0
+    coef = coef.clone           # Don't want to destroy the original
+    while true
+        sum += coef.shift       # Add and remove the next coef
+        break if coef.empty?    # If no more, done entirely.
+        sum *= x                # This happens the right number of times.
+    end
+    return sum
+end
+#
+# Function to read a line containing a list of integers and return
+# them as an array of integers.  If the string conversion fails, it
+# throws TypeError.  If the input line is the word 'quit', then it
+# converts it to an end-of-file exception
+def readints(prompt)
+    # Read a line
+    print prompt
+    line = readline.chomp
+    raise EOFError.new if line == 'quit' # You can also use a real EOF.
+            
+    # Go through each item on the line, converting each one and adding it
+    # to retval.
+    retval = [ ]
+    for str in line.split(/\s+/)
+        if str =~ /^\-?\d+$/
+            retval.push(str.to_i)
+        else
+            raise TypeError.new
+        end
+    end
+    return retval
+end
+#
+# Take a coeff and an exponent and return the string representation, ignoring
+# the sign of the coefficient.
+def term_to_str(coef, exp)
+    ret = ""
+    # Show coeff, unless it's 1 or at the right
+    coef = coef.abs
+    ret = coef.to_s     unless coef == 1 && exp > 0
+    ret += "x" if exp > 0                               # x if exponent not 0
+    ret += "^" + exp.to_s if exp > 1                    # ^exponent, if > 1.
+    return ret
+end
+#
+# Create a string of the polynomial in sort-of-readable form.
+def polystr(p)
+    # Get the exponent of first coefficient, plus 1.
+    exp = p.length
+    # Assign exponents to each term, making pairs of coeff and exponent,
+    # Then get rid of the zero terms.
+    p = (p.map { |c| exp -= 1; [ c, exp ] }).select { |p| p[0] != 0 }
+    # If there's nothing left, it's a zero
+    return "0" if p.empty?
+    # *** Now p is a non-empty list of [ coef, exponent ] pairs. ***
+    # Convert the first term, preceded by a "-" if it's negative.
+    result = (if p[0][0] < 0 then "-" else "" end) + term_to_str(*p[0])
+    # Convert the rest of the terms, in each case adding the appropriate
+    # + or - separating them.  
+    for term in p[1...p.length]
+        # Add the separator then the rep. of the term.
+        result += (if term[0] < 0 then " - " else " + " end) + 
+                term_to_str(*term)
+    end
+    return result
+end
+        
+#
+# Run until some kind of endfile.
+begin
+    # Repeat until an exception or quit gets us out.
+    while true
+        # Read a poly until it works.  An EOF will except out of the
+        # program.
+        print "\n"
+        begin
+            poly = readints("Enter a polynomial coefficients: ")
+        rescue TypeError
+            print "Try again.\n"
+            retry
+        end
+        break if poly.empty?
+        # Read and evaluate x values until the user types a blank line.
+        # Again, an EOF will except out of the pgm.
+        while true
+            # Request an integer.
+            print "Enter x value or blank line: "
+            x = readline.chomp
+            break if x == ''
+            raise EOFError.new if x == 'quit'
+            # If it looks bad, let's try again.
+            if x !~ /^\-?\d+$/
+                print "That doesn't look like an integer.  Please try again.\n"
+                next
+            end
+            # Convert to an integer and print the result.
+            x = x.to_i
+            print "p(x) = ", polystr(poly), "\n"
+            print "p(", x, ") = ", polyval(x, poly), "\n"
+        end
+    end
+rescue EOFError
+    print "\n=== EOF ===\n"
+rescue Interrupt, SignalException
+    print "\n=== Interrupted ===\n"
+else
+    print "--- Bye ---\n"
+end
+</textarea></form>
+    <script>
+      var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
+        mode: "text/x-ruby",
+        tabMode: "indent",
+        matchBrackets: true,
+        indentUnit: 4
+      });
+    </script>
+    <p><strong>MIME types defined:</strong> <code>text/x-ruby</code>.</p>
+    <p>Development of the CodeMirror Ruby mode was kindly sponsored
+    by <a href="http://ubalo.com/">Ubalo</a>, who hold
+    the <a href="LICENSE">license</a>.</p>
+  </body>
+</html>
author	Jose Antonio Marquez	2012-01-27 12:05:17 -0800
committer	Jose Antonio Marquez	2012-01-27 12:05:17 -0800
commit	3a754133dbc138390503341fd2e9beba3e43aa4b (patch)
tree	cdeae7d7dd9a30d7b4fab5afb7efad68d4ec7508 /imports/codemirror/mode/ruby/index.html
parent	b89a7ee8b956c96a1dcee995ea840feddc5d4b27 (diff)
download	ninja-3a754133dbc138390503341fd2e9beba3e43aa4b.tar.gz

diff --git a/imports/codemirror/mode/ruby/index.html b/imports/codemirror/mode/ruby/index.html new file mode 100755 index 00000000..6d33db19 --- /dev/null +++ b/imports/codemirror/mode/ruby/index.html
@@ -0,0 +1,171 @@
	1	<!doctype html>
	2	<html>
	3	<head>
	4	<title>CodeMirror: Ruby mode</title>
	5	<link rel="stylesheet" href="../../lib/codemirror.css">
	6	<script src="../../lib/codemirror.js"></script>
	7	<script src="ruby.js"></script>
	8	<style>
	9	.CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}
	10	.cm-s-default span.cm-arrow { color: red; }
	11	</style>
	12	<link rel="stylesheet" href="../../doc/docs.css">
	13	</head>
	14	<body>
	15	<h1>CodeMirror: Ruby mode</h1>
	16	<form><textarea id="code" name="code">
	17	# Code from http://sandbox.mc.edu/~bennet/ruby/code/poly_rb.html
	18	#
	19	# This program evaluates polynomials. It first asks for the coefficients
	20	# of a polynomial, which must be entered on one line, highest-order first.
	21	# It then requests values of x and will compute the value of the poly for
	22	# each x. It will repeatly ask for x values, unless you the user enters
	23	# a blank line. It that case, it will ask for another polynomial. If the
	24	# user types quit for either input, the program immediately exits.
	25	#
	26
	27	#
	28	# Function to evaluate a polynomial at x. The polynomial is given
	29	# as a list of coefficients, from the greatest to the least.
	30	def polyval(x, coef)
	31	sum = 0
	32	coef = coef.clone # Don't want to destroy the original
	33	while true
	34	sum += coef.shift # Add and remove the next coef
	35	break if coef.empty? # If no more, done entirely.
	36	sum *= x # This happens the right number of times.
	37	end
	38	return sum
	39	end
	40
	41	#
	42	# Function to read a line containing a list of integers and return
	43	# them as an array of integers. If the string conversion fails, it
	44	# throws TypeError. If the input line is the word 'quit', then it
	45	# converts it to an end-of-file exception
	46	def readints(prompt)
	47	# Read a line
	48	print prompt
	49	line = readline.chomp
	50	raise EOFError.new if line == 'quit' # You can also use a real EOF.
	51
	52	# Go through each item on the line, converting each one and adding it
	53	# to retval.
	54	retval = [ ]
	55	for str in line.split(/\s+/)
	56	if str =~ /^\-?\d+$/
	57	retval.push(str.to_i)
	58	else
	59	raise TypeError.new
	60	end
	61	end
	62
	63	return retval
	64	end
	65
	66	#
	67	# Take a coeff and an exponent and return the string representation, ignoring
	68	# the sign of the coefficient.
	69	def term_to_str(coef, exp)
	70	ret = ""
	71
	72	# Show coeff, unless it's 1 or at the right
	73	coef = coef.abs
	74	ret = coef.to_s unless coef == 1 && exp > 0
	75	ret += "x" if exp > 0 # x if exponent not 0
	76	ret += "^" + exp.to_s if exp > 1 # ^exponent, if > 1.
	77
	78	return ret
	79	end
	80
	81	#
	82	# Create a string of the polynomial in sort-of-readable form.
	83	def polystr(p)
	84	# Get the exponent of first coefficient, plus 1.
	85	exp = p.length
	86
	87	# Assign exponents to each term, making pairs of coeff and exponent,
	88	# Then get rid of the zero terms.
	89	p = (p.map { \|c\| exp -= 1; [ c, exp ] }).select { \|p\| p[0] != 0 }
	90
	91	# If there's nothing left, it's a zero
	92	return "0" if p.empty?
	93
	94	# * Now p is a non-empty list of [ coef, exponent ] pairs. *
	95
	96	# Convert the first term, preceded by a "-" if it's negative.
	97	result = (if p[0][0] < 0 then "-" else "" end) + term_to_str(*p[0])
	98
	99	# Convert the rest of the terms, in each case adding the appropriate
	100	# + or - separating them.
	101	for term in p[1...p.length]
	102	# Add the separator then the rep. of the term.
	103	result += (if term[0] < 0 then " - " else " + " end) +
	104	term_to_str(*term)
	105	end
	106
	107	return result
	108	end
	109
	110	#
	111	# Run until some kind of endfile.
	112	begin
	113	# Repeat until an exception or quit gets us out.
	114	while true
	115	# Read a poly until it works. An EOF will except out of the
	116	# program.
	117	print "\n"
	118	begin
	119	poly = readints("Enter a polynomial coefficients: ")
	120	rescue TypeError
	121	print "Try again.\n"
	122	retry
	123	end
	124	break if poly.empty?
	125
	126	# Read and evaluate x values until the user types a blank line.
	127	# Again, an EOF will except out of the pgm.
	128	while true
	129	# Request an integer.
	130	print "Enter x value or blank line: "
	131	x = readline.chomp
	132	break if x == ''
	133	raise EOFError.new if x == 'quit'
	134
	135	# If it looks bad, let's try again.
	136	if x !~ /^\-?\d+$/
	137	print "That doesn't look like an integer. Please try again.\n"
	138	next
	139	end
	140
	141	# Convert to an integer and print the result.
	142	x = x.to_i
	143	print "p(x) = ", polystr(poly), "\n"
	144	print "p(", x, ") = ", polyval(x, poly), "\n"
	145	end
	146	end
	147	rescue EOFError
	148	print "\n=== EOF ===\n"
	149	rescue Interrupt, SignalException
	150	print "\n=== Interrupted ===\n"
	151	else
	152	print "--- Bye ---\n"
	153	end
	154	</textarea></form>
	155	<script>
	156	var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
	157	mode: "text/x-ruby",
	158	tabMode: "indent",
	159	matchBrackets: true,
	160	indentUnit: 4
	161	});
	162	</script>
	163
	164	<p><strong>MIME types defined:</strong> <code>text/x-ruby</code>.</p>
	165
	166	<p>Development of the CodeMirror Ruby mode was kindly sponsored
	167	by <a href="http://ubalo.com/">Ubalo</a>, who hold
	168	the <a href="LICENSE">license</a>.</p>
	169
	170	</body>
	171	</html>