Batch Manipulating String by Input Variable Using "=&rem." -


using server 2016 here simple batch-file programming (for now).

i have think easy problem, not seeing workable solution in front of me right now. i'm going limit request right down testing scenario keep simple. trying trim string right until hits current year in format "_%year%-" year come variable elsewhere, set static in example. running issues referring variable within code have.

this working example not using variable on rem line, , gives desired output of "machined_cam-2286:"

@echo off setlocal disabledelayedexpansion  set "teststring=machined_cam-2286_2017-09-08.slddrw - solidworks" set "systemyear=2017" set "yearmodified=_%systemyear%-"  echo "%teststring%" | find "%yearmodified%" >nul || goto :eof  set teststring=%teststring:_2017-=&rem.%  echo %teststring%  pause

you can see "_2017-" hard-coded in on 10th line. looking in purely logical sense on rem line specifically:

set teststring=%teststring:%yearmodified%=&rem.%

because of way command modifies teststring in-line, makes difficult inject variable it. have tried huge combination of escapes , expansion settings variable take no success far. have tried "build" command string , attempt call , pipe output variable:

@echo off setlocal disabledelayedexpansion  set "teststring=machined_cam-2286_2017-09-08.slddrw - solidworks" set "systemyear=2017" set "yearmodified=_%systemyear%-"  echo "%teststring%" | find "%yearmodified%" >nul || goto :eof  set "callcmd=%%teststring:%yearmodified%=^&rem.%%"  call %callcmd% > %teststring%  echo %teststring%  pause

this seems such simple issue, lack of understanding of string manipulation under dos apparent. stands, rest of script running "_2017-" hard-coded. nice eliminite bit of maintenance.

any or direction appreciated.

thank you.

may show method of splitting. replace "delimiterstring" proper delimiter , use for split (for uses single-letter delimiters). enabling delayed expansion helps, not neccessary. explicitely disabled (you may have reasons), i'll show both:

@echo off set "teststring=machined_cam-2286_2017-09-08.slddrw - solidworks" set "cuthere=_2017"  setlocal enabledelayedexpansion /f "delims=§" %%a in ("!teststring:%cuthere%=§!") set result=%%~a echo enabled:  %result% endlocal  setlocal disabledelayedexpansion /f "delims=§" %%a in ('call echo "%%teststring:%cuthere%=§%%"') set result=%%~a echo disabled: %result% endlocal

just sure, use delimiter (§ here) surely won't in string(s).


Comments

Post a Comment

Popular posts from this blog

angular - Ionic slides - dynamically add slides before and after -

hi i'm using ngfor create set of 3 slides while starting in middle i'm guaranteed able slide left or right on start. when slide right can simple listen reachedend , push slide array i'm looping. but have problem adding slide beginning. if same above , use e.g. array.unshift() or spread add item beginning, view think it's on position 0 , snaps view new slide. the code below work animates slide change index 1. slide = [0,1,2] //example loop slidechanged(event) { if(this.slides.isbeginning()){ this.slide = [this.slide[0]-1, ...this.slide]; this.slides.update(); this.slides.slideto(1) } } <ion-slides [initialslide]="1" (ionslidedidchange)="slidechanged($event)"> <ion-slide *ngfor="let item of slide"> <h1>slide {{item}}</h1> </ion-slide> </ion-slides> any appreciated! you can using ionslidenextend , ionslideprevend events slides . please
Read more

minify - Minimizing css files -

i want know how css files can minimized. currently, using external sites css minifier compress css files. however, after removing whitespaces, comments, etc, file sizes reduced 10-15%. how frameworks bootstrap manage make minimized versions kilobytes. as example, css is: body { background-color: #ff0; } the reduction goes 28 bytes 22 bytes other css files have lot more characters still smaller this. actually minifying code means it's remove thing code white space characters new line characters comments block delimiters it reduces amount of code has transferred on web , speed site load fastly.but unreadable format.
Read more

Add a dynamic header in angular 2 http provider -

i have http interceptor built via tutorial https://scotch.io/@kashyapmukkamala/using-http-interceptor-with-angular2 the problem need have dynamic header changes automatically once changes 'mode' in app. service able tell interceptor change header, or have interceptor pull header (which string)from service each request. able throwing away patch method, call http.patch('new header string') set header string. call in service controls 'mode' setting. wondering if there way interceptor pull recent value service each request or if can add method http provider via interceptor? i've tried call service in interceptor each request returns undefined. because creating new instance of service or copying value before service fired , loaded/changed data. i don't want pass header string every http provider call because defeats purpose of having interceptor, id able set once changes or have provider fetch service before makes request. tl;dr : need add autom
Read more