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From |
"Michael N. Mitchell" <Michael.Norman.Mitchell@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Re: Macro escape inside a macro |

Date |
Wed, 29 Sep 2010 01:42:33 -0700 |

Greetings

* Assign the macro to x . local x "\`d'" * Now see what it contains . macro list (some output omitted) _x: `d' Note that _x is the way of -macro list- saying that x is a local macro and it contains `d'. * Now use the -display- command, it looks empty . display "`x'"

. local d This is the macro d * Now what does macro list show . macro list (some output omitted) _d: This is the macro d _x: `d' Note now what happens when we display "`x'"... . display "`x'" This is the macro d

Best regards, Michael N. Mitchell Data Management Using Stata - http://www.stata.com/bookstore/dmus.html A Visual Guide to Stata Graphics - http://www.stata.com/bookstore/vgsg.html Stata tidbit of the week - http://www.MichaelNormanMitchell.com On 2010-09-29 1.19 AM, Aleksander Rutkowski wrote:

Eric, Nic, thank you for your replies. It appears that the beginning of my original message did not reach statalist. I am resending it -- see below. BTW, I have read http://www.stata.com/support/faqs/lang/backslash.html but it shows only simple actions with -display- command, which work fine, but my problem is more complicated. I want to delay substitution of a macro which is nested in another macro -- see below. Why backslash works when used with -display- but not with -local-? (In my example below I want to expand x but not d). I tried to use -macval()- but I did not succeed. The description of -macval()- in the [P] manual is very brief and there is no example with a full syntax. Maybe somebody could give an example how -macval()- should be used? -- original message below -- Why: di "\`d'" displays: `d' but: local x "\`d'" di "`x'" displays empty string? How can I escape macro (i.e. prevent macro substitution) inside another macro (i.e. when defining another macro)? Aleksander Rutkowski * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

* * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**RE: st: Re: Macro escape inside a macro***From:*Nick Cox <n.j.cox@durham.ac.uk>

**References**:**st: Macro escape inside a macro***From:*Aleksander Rutkowski <alek.rutkowski@gmail.com>

**st: Re: Macro escape inside a macro***From:*Aleksander Rutkowski <alek.rutkowski@gmail.com>

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