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asp.net web forms Universal Product Code version A # Here is the start of a Tcl comment \ and some more of it ; still in the comment in .NET Print QRCode in .NET # Here is the start of a Tcl comment \ and some more of it ; still in the comment

# Here is the start of a Tcl comment \ and some more of it ; still in the comment use none none creation toincoporate none with noneasp.net upc-a Command Line Arguments USPS PLANET Barcode The Tcl shells pass the co mmand line arguments to the script as the value of the argv variable. argv is a list, so you use the lindex command described in 3 to extract items from the argument list..

set first [lindex $argv 0] none for none set second [lindex $argv 1]. Table 1 5 on page 18 gives the complete set of pre-de ned variables. Y ou can also use the info vars command to nd out what is de ned..

info vars => tcl_interactive argv0 argv auto_path argc env Created: December 15, 1994 TclIntro.fm3 Copyright Prentice Hall DRAFT: 1/13/95. Tcl Fundamentals Chap.1 Reference Backslash Sequences Table 1 1 Backslash sequences. \a \b \f \n \r \t \v \<newline> \\ \ooo \xhh \c Bell. (0x7) Backspace. (0x none for none 8) Form feed.

(0xc) Newline. (0xa) Carriage return. (0xd) Tab (0x9) Vertical tab.

(0xb) Replace newline and all leading whitespace on the following line with a single space. Backslash. ( \ ) Octal speci cation of character code.

1, 2, or 3 digits. Hexadecimal speci cation of character code. 1 or 2 digits.

Replaced with literal c if c is not one of the cases listed above. In particular, \$, \", \{ and \[ are used to obtain these characters..

Arithmetic Operators Table 1 2 Arithmetic Operators from highest to lowest precedence. - ~ ! * / % + << >> < > <= >= == != & ^ && . x y:z Unary minus, bitwise NOT, none for none logical NOT. Multiply, divide, remainder. Add, subtract.

Left shift, right shift. Comparison: less, greater, less or equal, greater or equal. Equal, not equal.

Bitwise AND. Bitwise NOT. Bitwise OR.

Logical AND. Logical OR. If x then y else z.

. Created: December 15, 1994 TclIntro.fm3 Copyright Prentice Hall DRAFT: 1/13/95. Reference Built-in Math Functions Table 1 3 Built-in Math functions acos(x) asin(x) atan(x) at an2(y,x) ceil(x) cos(x) cosh(x) exp(x) floor(x) fmod(x,y) hypot(x,y) log(x) log10(x) pow(x,y) sin(x) sinh(x) sqrt(x) tan(x) tanh(x) abs(x) double(x) int(x) round(x). Arc-cosine of x. Arc-sine none none of x. Arc-tangent of x.

Rectangular (x,y) to polar(r,th). atan2 gives th Least integral value greater than or equal to x. Cosine of x.

Hyperbolic cosine of x. Exponential, ex Greatest integral value less than or equal to x. Floating point remainder of x/y.

Returns sqrt(x*x + y*y). r part of polar coordinates. Natural log of x.

Log base 10 of x. x to the y power, xy Sine of x. Hyperbolic sine of x.

Square root of x. Tangent of x. Hyperbolic tangent of x.

Absolute value of x. Promote x to oating point. Truncate x to an integer.

Round x to an integer.. Core Tcl Commands The pages given in Table 1 4 are the primary reference for the command. Table 1 4 Built-in Tcl Commands Command append Pg. 21 Description Append arguments to a variable s value. No spaces added. Created: December 15, 1994 none none TclIntro.fm3 Copyright Prentice Hall DRAFT: 1/13/95. 16 Table 1 4 Built-in Tcl Commands Tcl Fundamentals Chap.1 array break catch cd close none for none concat continue error eof eval exec exit expr file flush for foreach format gets glob global history if incr info join lappend lindex linsert list. 37 46 46 74 74 32 46 48 70 59 65 75 4 67 70 46 44 21 72 74 53 81 42 8 77 35 32 33 34 32. Query array state and sear none for none ch through elements. Premature loop exit. Trap errors.

Change working directory. Close an open I/O stream. concatenate arguments with spaces between.

Splices lists together. Continue with next loop iteration. Raise an error.

Check for end-of- le. concatenate arguments and then evaluate them as a command. Fork and execute a UNIX program.

Terminate the process. Evaluate a math expression. Query the le system.

Flush output from an I/O stream s internal buffers. Loop construct similar to C for statement. Loop construct over a list of values.

Format a string similar to C sprintf. Read a line of input from an I/O stream. Expand a pattern to matching le names.

Declare global variables. Command-line history control. Conditional command.

Allows else and elseif clauses. Increment a variable by an integer amount. Query the state of the Tcl interpreter.

concatenate list elements with a given separator string. Add elements to the end of a list. Fetch an element of a list.

Insert elements into a list. Create a list out of the arguments..

Created: December 15, 1994 TclIntro.fm3 Copyright Prentice Hall DRAFT: 1/13/95.
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